In April 2016 at the Geneva Auto Show, Tadge Juechter, the chief engineer on the C7, introduced the new Grand Sport model for the 2017 model year. The Grand Sport is a hybrid of the Z51 Stingray and the Z06; sharing much of the wide body work of the Z06 (except the hood) with the Z51 LT1 dry sump engine. The Grand Sport features:
- Michelin Pilot Super Sport summer tires: 285/30ZR19 (front) and 335/25ZR20 (rear)
- unique Grand Sport wheel design: 19×10 inches (front) and 20×12 inches (rear)
- Brembo brake system: 14 in (356 mm) rotors and six-piston calipers in front, and 13.4 in (340 mm) rotors and four-piston calipers in the rear
- magnetic ride control, specific stabilizer bars and unique springs
- electronic limited-slip differential
- LT1 V8 engine rated at 460 hp (343 kW), with dry-sump oiling system and active exhaust
- 7-speed manual transmission, with active rev match and available eight-speed paddle-shift automatic with specific performance calibration
Grand Sport models are offered as a convertible or coupe with either a 7-speed manual or 8-speed automatic transmission.
An available Z07 package adds carbon ceramic-matrix brakes and Michelin Pilot Sport 2 Cup tires. An available Heritage Package includes interior brushed aluminum hash marks, and floor mats with the Grand Sport logo.
