With the optional Z07 package, the Corvette Z06 dominated our figure-eight test but got a bit slower in straight-line acceleration
. Shortly thereafter, Chevrolet sent us a Corvette Z06 coupe equipped with the Z07 performance pack, plus optional carbon wheels and upgraded aerodynamics. This car proved just 88 pounds lighter than the non-Z07 drop-top we previously tested. The Z07 pack features revised aero said to provide 734 pounds of downforce at 186 mph, Brembo carbon-ceramic brakes , stickier Michelin Pilot Sport Cup 2R ZP tires , and recalibrated magneto-rheological suspension.
And might the added drag from the Z07's aero pieces explain its 3.4-mph deficit at the quarter-mile trap? You bet. That's always the tradeoff for downforce enhancement. Having the same 15.7-inch front and 15.4-inch rear vented and drilled carbon-ceramic brake rotors as the Z06 convertible, the Z07's same-size-but-stickier tires managed to shave 4 feet from a stop from 60 mph, with an impressive 95-foot best.
Here, there's no question which Z06 Vette is king. The Z07-equipped coupe beats the standard Z06 convertible by nearly a full second at 21.9 seconds versus 22.7. Data analysis shows that both cars hit Vmax near 86 or 87 mph with the gains coming from braking, cornering, and exiting. During the skidpad sections at either end of the course, the Z07 car averaged 1.16 g of lateral grip—a big improvement over the convertible's 1.10 g.
The differences felt in the driver's butt, hands, and inner ear are harder to measure but just as monumental. This is what I always thought the mid-engine Corvette would be like! It is absolutely world-class on the figure-eight. Like a Porsche, you can choose your brake zones— early, mid, or late—and it doesn't care. The carbon-fiber wheels utterly transform the feel and behavior of the Z06. Turn-in is incredibly crisp, and I found myself nicking the second cone because it was so quick.
By the way, the naturally aspirated Corvette Z06 with the Z07 kit tied our all-time figure-eight record alongside some really expensive, twin-turbocharged heavy-hitters: the
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