2023 Chevrolet Corvette Z06 LT6 Engine-Tech Deep Dive: Ready, Set, Devastate
Late last year, we spent a couple hours peppering GM engineers with questions during a development drive of the 2023 Chevrolet Corvette Z06, then we interviewed a different set of engineers during a photo shoot of the car and its LT6 engine. Now Chevy has presented a 3.5-hour deep-dive webinar divulging even more of the enabling race-inspired technology behind the world's most potent naturally aspirated production-car engine. We've done our best to boil it down to 23 slides crammed full of the most essential knowledge—nuggets you'll need to explain to your pals at the pub why America's supercar has earned a place as one of history's greatest combustion-powered sports cars.
You may also like
Stellantis, the new brand formed after the merger of Fiat Chrysler Automobiles and PSA Group, is on the verge of transforming itself into a technology and mobility company. And the message is coming through loud and clear. Carlos Tavares, CEO of the company, opened his 2022 CES press conference by saying, "We are reimagining the future of mobility for generations to come as we quickly shift to a tech company, providing our customers with safe, sustainable and affordable mobility solutions."While the transformation will take years, the company has already started outlining its plan. Stellantis' global chief technology officer, Ned Curic, told MotorTrend in an interview the work starts by simplifying. Currently, the big automaker has many different platforms it supports, and focusing on a couple will help lead this new transformation."If you look at traditional tech companies, or new technology companies, they don't have many platforms—maybe one, two, or three—but then there's software to differentiate," he said. "What we have to do is to simplify our technology dramatically."Simplifying the hardware and using the software to differentiate its components will be the starting point in the transformation. Along with creating an immersive cabin experience, Stellantis plans to gain customer satisfaction as it starts to roll out the new technology.Partnering with the right people to help a transformation is key in any industry, but particularly in the automotive sector. Stellantis announced a partnership with tech giant Amazon to use its software to bring over the air updates and use Amazon Web Services (AWS) as its cloud-based technology in Stellantis' future vehicles. Curic, who was vice president of Alexa Automotive at Amazon before moving to Stellantis, said both companies have a similar culture, where the customer comes first."My focus is on the simplification and software and Amazon knows really well how to do that, so we learn from them, they learn from us and it's a good marriage," he said. "We learn from them on the software side of the vehicle, because that's where they do exceptionally well."While it's still unclear what kind of product the customer will be seeing from Amazon in Stellantis' cars, Curic said the Uconnect infotainment system will probably evolve into something else, but customers can expect a more diverse experience. One change where Stellantis will focus on is reducing the digital noise in the cabin, meaning smaller cars will not see screens all over the place."We're trying to be digitally quiet but precise in what customers want to do and remove friction. If you want to subscribe to an application in the vehicle, you should be able to acknowledge it with one tap or voice controls," Curic said.The Chrysler brand will see a turnaround in the next few years as it enters a new era to become Stellantis' first technology brand, but that will quickly replicate to the rest of the group. The new cabin experience with Amazon, dubbed STLA SmartCockpit, will arrive in 2024, and will bring artificial intelligence and cloud solutions to the interior.Transforming into a technology mobility company will not be an easy task, but a future roadmap of the products that it will use in the next eight years will be presented by Tavares on March 1, when the company will announce its plan for 2030.
Brace yourself. The Lincoln concept debuting at the Pebble Beach Concours d'Elegance is a massive take on a future luxury electric car with a giant 14-foot reverse-hinged door—longer than some entire vehicles—and even features its own red carpet for a dramatic, royal arrival wherever it goes. Ford's luxury brand makes a grand statement with the Lincoln Model L100 Concept. The name is in celebration of Lincoln's 100th anniversary and pays homage to the automaker's first luxury vehicle, the 1922 Model L.While the name is a nod to the past, the car is very much the future of Lincoln. The brand has promised a full electric vehicle lineup, with three new EVs by 2025, a fourth in 2026, and a fully electrified portfolio by 2030. For a glimpse into what the near-term EVs will look like, Ford's luxury brand first showed us the Lincoln Star concept, an electric streamlined SUV with dynamic lighting, transparent frunk, and coach doors. The Lincoln Model L100 is the long-range preview of a world where autonomous vehicles share the road with EVs driven manually.Designing the Lincoln L100 From the Inside OutDesigners and modelers worked furiously to pull a show car together to toast the past and future simultaneously with a debut during the country's most ostentatious car event: Monterey Car Week. The five-passenger concept was designed digitally first and a foam model of the massive car grew from that. A version in sheetmetal, with the help of 3D printing, was being pulled together right up to the reveal deadline.The final show car is imposing. It is longer than a Lincoln Navigator L; the long-wheelbase SUV is 18.5 feet long. The L100 dwarfs it at more than 20 feet long and 6 ½ feet wide with more than 16 feet of interior space. Lincoln Global Design Director Kemal Curic said they built the interior first and it is the largest that Lincoln has ever created. Then came the exterior, resplendent in metallic paint paired with frosted acrylic in lieu of chrome to create a soft white that transitions to blue.In a nod to the past: the concept was designed so it can still be driven. In a nod to the future: the driver can decide to lean back, stretch out, and let the car drive completely autonomously, in theory.Step Inside and Stretch OutThe 14-foot door is a piece of art with the most complex rear hinge the automaker, or maybe any automaker, has ever attempted. Once open you can remain upright as you enter the cabin—no yoga moves required to reach the queen and king seats in the back, which can be set to lounge mode with legs out and heads resting against the huge singular headrest that spans the cavernous interior. In autonomous mode, the dash disappears under the instrument panel and occupants have an unobstructed view of what is ahead.The seating layout is designed to be social. Passengers can all face forward, or front passengers can swivel to face their rear companions. The digital floor can create a mood or experience, such as projecting the image of flying above the clouds in an attempt to take passengers back to the time of romance and travel.The car plays up all the senses in a minimalist interior. Screens are not overpowering, there is no steering wheel or column. The animal-free materials in the cabin include a recycled suede-like fabric with amethyst accents.Tap Into Your Inner Child and Steer Like A Toy CarTo steer, there is a center console chessboard with a crystal chess piece controller that replaces a traditional steering wheel. Think of how a child plays with a toy car, grabbing its sides and sliding it forward or twisting it to turn. The same motions with the chess piece direct the car. An adult from any seat can assume control—there is no set driver or passenger seat since there is no restrictive steering column to work around.The lighting projects a red carpet onto the ground, but the concept also goes beyond puddle lighting. Tracking lighting detects you and follows you, 360 degrees, as you walk around the vehicle—an artificial intelligence feature designed to make you feel both safe and special, as if it knows you.The frunk was designed to be a jewelry box and there is a heritage jewel inside: a crystal greyhound ornament under the transparent hood that harkens back to the hood ornament originally selected by Edsel Ford in the 1920s to symbolize the grace and elegance of the Lincoln brand, which the Ford Motor Company had purchased.The L100 has a modern take on the Lincoln star logo on the front of the car. It is simple and backlit, like the apple on a MacBook. This is the first use of this new adaptation and could become a signature on future models.It is only a concept, so powertrain can be fictional. Lincoln officials say the L100 would use a solid-state battery to provide greater range at less cost. The teardrop shape and long tail give it the aerodynamics needed for greater efficiency, along with closed-off wheels and air flow through the bottom of the grille.At first glance the car appears to have an extremely long hood, but it actually starts almost in front of the front wheel with a cut line rear of the hood. The rear is sliced off, with a sharp angle like the back of a super yacht. The glass roof seamlessly melds into the body at the rear.LED Lights are the New ChromeLike most EVs, the concept plays up lighting as a new brand signature. LEDs are the new chrome, Curic says. The spinning wheels have smart covers that use sensors and lighting. The digital look makes it look like the car is gliding along the road. The glowing wheels also indicate the car's rate of charge, like giant analog dials.The L100 sets the pace for the future, says Lincoln Global Product Director John Jraiche. "A lot of the form language and strategy will be in future Lincolns." He says Lincoln is not beholden to its past and is creating a new identify in the EV age. Some aspects are pure concept -the massive door won't make it to production—but the idea behind it, of the car welcoming and hugging its occupants, is an idea that will be taken forward to production models. Some of the lighting and the face of the L100 could be in the first Lincoln EVs to hit the market, Curic says.The L100 project started before the Lincoln Star concept and the two proceeded in parallel, as two takes on the future of Lincoln from different time points, with brand signifiers in both vehicles. The team does not rule out a smaller version of the L100 for production. "Lincoln has always been special to me and my family, especially my father and my grandfather. If there is one secret to Lincoln's longevity, it is the brand's ability to balance its core values with a desire to innovate and create the future," said Ford executive chair Bill Ford in a statement. "Lincoln has been one of the most enduring and stylish automotive brands in the world and in many ways, it is perfectly positioned for a second century defined by great design, zero-emissions and technology-led experiences."
We're at the end of an era for luxury sport compact sedans. The segment that BMW invented with the 1986 M3 has long embraced change. The little four-cylinder homologation specials that matured the segment beyond icons such as the 2002 eventually became V-8-powered cruise missiles in the early '00s. The engines have since downsized to forced-induction sixes as times changed, and with nearly every automaker now promising to electrify their lineups in the near future, we're witnessing yet another transition. But thanks to cars such as the new 2022 BMW M3 Competition and 2022 Cadillac CT4-V Blackwing, the internal combustion luxury sport compact sedan is going out with a bang.Spec RundownPitting the M3 Competition (the top dog of the M3/M4 lineup) against the CT4-V Blackwing (effectively a reskinned ATS-V) may seem like a mismatch, but there's a method to our madness. The ATS-V, despite never winning a comparison test, had always been one of our favorite vehicles in the segment. The new CT4-V Blackwing, simply put, makes the ATS-V better. Its 3.6-liter twin-turbo V-6 gets a small output boost, now churning out 472 hp and 445 lb-ft of torque, and it's paired with an optional quick-shifting 10-speed automatic (a six-speed manual is standard). It's also crucially fit with the latest generation of MagneRide dampers, and well, that's really about it. Prices start at $59,900, but the CT4-V Blackwing you see here stickers for $80,235.With 473 horsepower and 406 lb-ft of torque spilling forth from its 3.0-liter turbocharged I-6, the standard M3 seems to be an even matchup for the Cadillac. Except when we drove the latest manual-equipped M4 (the two-door version of the M3) back to back with the CT4, it was no competition—the Caddy was just plain better to drive. More fun, more planted, and more capable, it made the M4 feel like a midgrade M440i. So, with an M3 Competition on hand and in the interest of making things, well, interesting, we decided the M3 Competition would take the M4's place.The Competition turns the wick up a bit on the basic M3/M4 formula. Thanks to more boost and upgraded cooling, output rises to 503 hp and 479 lb-ft of twist. To make the most of the newfound power, BMW equips the Competition with an eight-speed automatic, and on our test car, defeatable all-wheel drive (meaning you can force it into a rear-drive-only mode). Prices for the M3 start at $70,895, while the all-wheel-drive M3 Competition xDrive starts at $77,895. A good chunk of our M3 Competition xDrive's $108,545 sticker is eaten up by optional M carbon-ceramic brakes ($8,150) and the dividing (literally) M Carbon bucket seats ($3,800), though the vast majority of the options on our test car are inconsequential cosmetic and luxury options.Hitting the RoadAlthough the outright performance of both the CT4-V Blackwing and M3 Competition is what will get buyers into showrooms, how they drive in the real world is what will sell them. So let's ignore the numbers, shall we? May the most fun-to-drive car win—because after all, "fun" is what this segment is all about.Riding on GM's rear-drive Alpha platform, the Cadillac is, as senior features editor Jonny Lieberman puts it, "a stud." Aided in part by the latest MagneRide dampers and more accessible Performance Traction Management (PTM) modes (now handily operable via a switch on the steering wheel instead of buried in fiddly menus), the CT4-V Blackwing shines on a good back road. Steering is quick and communicative; the chassis feels light, poised, and well balanced; and the car is damn near impossible to upset. The Cadillac's brakes are worthy of praise, too. Despite lacking fancy (read: expensive) carbon-ceramic brake rotors, we are enamored by the steel rotors' stopping power and the CT4's brake tuning. "Makes the M3 Competition feel like it has 320i brakes," features editor Scott Evans said. "Immediate bite, perfect modulation, and it stops so much harder than the BMW."If the Cadillac has a weak spot, its low-revving V-6 is a good candidate. We weren't taken with this engine back when it first appeared under the hood of the ATS-V, and the addition of 8 extra horsepower hasn't made it any better. That's not to say the CT4-V's powertrain is bad. The twin-turbo V-6 is punchy and delivers a broad torque curve, while the 10-speed auto is among GM's best performance automatics yet, with quick, decisive up- and downshifts, and bang-on tuning for hard driving. It's just so … incredibly uninspiring, with a dull, flat exhaust note and a relatively low 6,500-rpm redline. A naturally aspirated V-8—like the one currently available in the CT4's Chevrolet Camaro SS 1LE platform mate—would do much to wake the CT4-V Blackwing up.The M3 Competition, on the other hand, feels as if its "engine runs on Tannerite," as deputy editor Alex Stoklosa puts it. The Bimmer is explosively powerful and gloriously unhinged. Capable of revving to 7,200 rpm, the M3's inline-six feels like a Minuteman missile on a hair trigger, throwing its power down so violently that we question its 503 horsepower rating.But the M3 is more than just an underrated engine. In a welcome change of pace from modern BMWs, steering is quick, and feel is light but direct. The all-wheel-drive system is impressively neutral, too, helping tame the manic engine without negatively impacting steering feel. "The chassis feels very balanced front to rear," Stoklosa said, "and I found it very easy to transition between over/understeer. It's supremely easy and satisfying to meter out just enough throttle to tuck the nose in or kick the M3 into a controllable, easily placed slide."Still, it's not all roses for the BMW. For starters, there are way too many adjustable settings in the M3 and no easy way to cycle through them while on the move; it is much easier to find your Goldilocks setting in the Cadillac. Some editors found the BMW's carbon-ceramic brakes difficult to modulate smoothly when driving hard, though we were all impressed by their stopping power.Do Numbers Even Matter?With any car—but especially performance cars—it's really tempting to get bogged down in the numbers. Surely, they must tell us something, right? Honestly, though, they really don't in this particular case. There will always be cars that are quicker or faster than a BMW M3 Competition and Cadillac CT4-V Blackwing. These cars—among the last of their kind as we approach widespread electrification—are about the way they feel, the way they drive. The emotional response rises above other considerations.You're more than welcome to geek out over performance numbers by scrolling down to the chart at the bottom of the page, but spoiler alert: The more expensive, more powerful, grippier M3 comes out ahead in all of our instrumented tests. But again, in this particular case, so what?Which Car Is Best?When it comes to picking the winner, ignoring everything but the way these vehicles make us feel when unleashed on our favorite roads, the BMW M3 Competition earns the victory. The Cadillac CT4-V Blackwing is a fantastic riding and handling car that's ultimately held back by an uninspiring engine and a general lack of fireworks. The M3 Competition, on the other hand, is everything we're going to miss about internal combustion—loud and unapologetic but also an absolute joy to drive. It's an engaging and organic powder keg and a return to form for BMW. Just a shame about that nose, no?2nd Place: 2022 Cadillac CT4-V BlackwingPros: Well-balanced chassis with great handlingSuperb brakesRelatively cheapCons: Uninspiring engineCould handle more powerBoring exhaust note1st Place: 2022 BMW M3 CompetitionPros: Unhinged engineTransparent all-wheel-drive systemExceptional steeringCons: PriceyCarbon-ceramic brakes aren't worth the upgradeIt's quite rough to look atPOWERTRAIN/CHASSIS 2022 BMW M3 Competition (xDrive) Specifications 2022 Cadilac CT4 V Blackwing Specifications DRIVETRAIN LAYOUT Front-engine, AWD Front-engine, RWD ENGINE TYPE Turbo direct-injected DOHC 24-valve I-6, alum block/head Twin-turbo direct-injected DOHC 24-valve 60-degree V-6, alum block/heads DISPLACEMENT 2,993 cc/182.6 cu in 3,564 cc/217.5 cu in COMPRESSION RATIO 9.3:1 10.2:1 POWER (SAE NET) 503 hp @ 6,250 rpm 472 hp @ 5,750 rpm TORQUE (SAE NET) 479 lb-ft @ 2,750 rpm 445 lb-ft @ 3,500 rpm REDLINE 7,200 rpm 6,500 rpm WEIGHT TO POWER 7.8 lb/hp 8.2 lb/hp TRANSMISSION 8-speed automatic 10-speed automatic AXLE/FINAL-DRIVE RATIO 3.15:1/2.02:1 2.85:1/1.82:1 SUSPENSION, FRONT; REAR Struts, coil springs, adj shocks, anti-roll bar; multilink, coil springs, adj shocks, anti-roll bar Struts, coil springs, adj shocks, anti-roll bar; multilink, coil springs, adj shocks, anti-roll bar STEERING RATIO 15.0:1 11.6-15.5:1 TURNS LOCK-TO-LOCK 2.0 2.2 BRAKES, F; R 15.7-in vented, drilled, carbon-ceramic disc; 15.0-in vented, drilled, carbon-ceramic disc 15.0-in vented disc; 13.4-in vented disc WHEELS, F;R 9.5 x 19-in; 10.5 x 20-in, forged aluminum 9.0 x 18-in; 9.5 x 18-in cast aluminum TIRES, F;R 275/35R19 100Y; 285/30R20 99Y Michelin Pilot Sport 4S 255/35R18 94Y; 275/35R18 99Y Michelin Pilot Sport 4S DIMENSIONS WHEELBASE 112.5 in 109.3 TRACK, F/R 63.7/63.2 in 60.5/60.5 in LENGTH x WIDTH x HEIGHT 189.1 x 74.3 x 56.4 in 187.6 x 71.4 x 56.0 in TURNING CIRCLE 41.4 ft 38.8 ft CURB WEIGHT (DIST F/R) 3,899 lb (54/46%) 3,888 lb (53/47%) SEATING CAPACITY 5 5 HEADROOM, F/R 40.6/37.8 in 38.3/36.5 in LEGROOM, F/R 41.6/35.6 in 42.4/33.4 in SHOULDER ROOM, F/R 56.0/54.6 in 55.2/53.9 in CARGO VOLUME 13.0 cu ft 10.7 cu ft TEST DATA ACCELERATION TO MPH 0-30 1.0 sec 1.5 sec 0-40 1.7 2.2 0-50 2.3 3.0 0-60 3.0 4.0 0-70 3.8 5.1 0-80 4.8 6.4 0-90 5.9 7.7 0-100 7.2 9.4 PASSING, 45-65 MPH 1.5 1.9 QUARTER MILE 11.1 sec @ 124.7 mph 12.4 sec @ 114.0 mph BRAKING, 60-0 MPH 105 ft 106 ft LATERAL ACCELERATION 1.03 g (avg) 1.05 g (avg) MT FIGURE EIGHT 23.3 sec @ 0.89 g (avg) 23.8 sec @ 0.84 g (avg) TOP-GEAR REVS @ 60 MPH 1,500 rpm 1,500 rpm CONSUMER INFO BASE PRICE $77,895 $59,900 PRICE AS TESTED $108,545 $80,235 AIRBAGS 8: Dual front, front side, f/r curtain, front knee 8: Dual front, front side, f/r curtain, front knee BASIC WARRANTY 4 yrs/50,000 miles 4 yrs/50,000 miles POWERTRAIN WARRANTY 4 yrs/50,000 miles 6 yrs/70,000 miles ROADSIDE ASSISTANCE 4 yrs/Unlimited miles 6 yrs/70,000 miles FUEL CAPACITY 15.6 gal 17.4 gal EPA CITY/HWY/COMB ECON 16/22/18 mpg 16/24/19 mpg EPA RANGE (COMB) 281 miles 331 miles RECOMMENDED FUEL Unleaded premium Unleaded premium ON SALE Now Now Show All
0 Comments