Callaway C-Projects C1 Turbo Systems | ’77-91 C2 HH Indy Car Engine | ’79-84 C3 Alfa Romeo Twin Turbo | ’83-86 C4 Twin Turbo Corvette | ’87-91 C5 Aston Martin Virage/AMR-1 | ’88-89 C6 SuperNatural Corvette | ’92-96 Callaway C7 | ’93-96 C8 SuperNatural Camaro | ’93-02 C9 Callaway Impala SS | ’94-96 C10 Corvette Ski Boat | ’96-97 C11 Land Rover 4.6 HSE | ’98-99 Callaway C12 Automobiles | ’97-01 C13 Holden Special Vehicles | ’98-03 C14 Mazdaspeed Protegé | ’01-03 C15 Callaway Competition Race Support | ’05-present Callaway C16 Automobiles | ’05-13 C17 Callaway Supercharged Corvette | ’05-’19 C18 Callaway Supercharged Camaro | ’09-’24 C19 Callaway Supercharged SportTruck | ’11-present C20 Callaway Corvette C6 Racecar Development | ’05-’13 C21 Callaway AeroWagen™ | ’14-present C22 Callaway Corvette C7 Racecar Development | ’14-’20 C23 Callaway Corvette C8 | ’20-present Other Callaway Cars Projects Kohler Turbocharged Generator Sets | ’85 Iso Rivolta Grifo 90 | ’90-91 Speiss Twin Turbo V8 | ’91-92 Ruger Stutz DV32 Turbo | ’93-01 Callaway Cyclone V16 | ’04-Present