Starting with a 1988 Chevrolet Corvette C4, Callaway employed the help of famed engine tuner John Lingenfelter (heard of him?) to transform the car into an 889-horsepower twin-turbo monster ...

With the recent announcement of the 2025 twin-turbo LT7 ZR1 the nameplate seems ... the ZR1 package vanished until 1990 and the C4 Corvette. Now with a hyphen, the ZR-1 was the king of the hill ...

Instead, the Corvette team is opting to run a red, white, and blue tribute livery. The new colors are a salute to a C4-generation IMSA GTO Corvette run by Protofab Racing during the 1987 season.

he and the automaker introduced a twin-turbo Corvette package (Regular Production Option B2K). Customers could walk into a dealership and order a Callaway-tuned C4 with nearly 400 horsepower with ...