Having attended both F1 and IMSA races, I found some distinct differences, and you might be surprised at what I discovered.

Two Valkyrie Hypercars will compete in WEC, and one will compete in IMSA ... racing version of the Valkyrie long before the road car reached production. However, it scrapped the project in early ...

From the unmistakable shrill howl of the four-rotor 1991 Mazda RX-7-001 GTO to the thundering Chevrolet V-8 growl of a 1985 Lola Corvette GTP, the winners of the inaugural Historic Sportscar Racing ...

By the end of the century sports-car racing was splintered and fragmented, but 10 years ago the IMSA name was reborn ... deal ...

The Pontiac GTO is widely recognized as the genesis of the American muscle car golden age, and now, we're taking a look at these classic GTO concept sketches.

Pontiac GTO. This Baja Gold Ram Air III Goat will cross the Mecum Auctions block at their Glendale, Arizona event in March.

The closing hour of the 63rd Rolex 24 began to resemble the type of racing that has made Daytona synonymous with NASCAR and burly stock cars ... In Saturday’s early hours, the stadium side ...

Iconic Pontiacs duke it out on the dragstrip in native Michigan; both carry 400-cube V8s and manual transmissions; they’re disappointingly late across the line ...