After turbocharging the Alfa Romeo GTV6, Callaway was approached by General Motors to apply his know-how to the C4 Corvette. In 1987, the first and only modified Corvette ever to be sold at GM ...

In the 1980s, the former driving instructor also developed the HH IndyCar V8 engine and later, a twin-turbo kit for the Alfa Romeo GTV6. Photo: Mecum Auctions Around this time, Chevrolet ...

The one-of-one Callaway Sledgehammer C4 Corvette was built to do two things — crack 250 mph, and not fall apart in the process. John Lingenfelter blasted past that objective on October 26, 1988 ...

Duffers are ruining things for Topgolf Callaway MODG1.50%increase; green up pointing triangle. Serious golfers are reliably showing up on golf courses, spending money on their equipment and golf ...

Shares of Topgolf Callaway Brands Corp. slipped after hours on Monday after the parent of Topgolf and Callaway-brand golf clubs warned of weaker sales at the driving-range chain and more ...