Grand Sport upgrades include Michelin Pilot Super Sport summer tires, a specific wheel design, Brembo brakes with 14-inch rotors and six-piston calipers in front and 13.4-inch rotors and four-piston calipers in the rear,

standard magnetic ride control, specific stabilizer bars and unique springs, standard electronic limited-slip differential, LT1 V8 engine rated at 460 hp, with a dry-sump oiling system and active exhaust and a seven-speed manual transmission with active rev match.
If you want, you can also get it with an eight-speed paddle-shift automatic with specific performance calibration and/or the available Z07 package, which adds carbon ceramic-matrix brakes and Michelin Pilot Sport 2 Cup tires.

The Collector Edition gets this blue interior.

“We didn’t hold back with the new Grand Sport,” said Tadge Juechter, Corvette chief engineer.

“For the first time, buyers can equip the Grand Sport with a Z07 performance package, which adds carbon-ceramic brakes, Michelin Sport Cup 2 summer tires, and carbon-fiber aero package that delivers true downforce.”