Tom Long drove the Mazda Heritage Collection 1991 Mazda RX-7 GTO to the overall and GT class ... of what is a new tradition at each year’s IMSA season-opening Rolex 24 At Daytona.

It also reigned as the IMSA GTO champion for a decade, thus proving the Mazda sports car's racing pedigree. However, tightening emissions regulations meant that the rotary engine eventually had to ...

A Swedish Audi fanatic seems to think so, too, and has gone to extreme lengths to transform a workaday Audi 90 into the IMSA GTO version of that car. Not wanting to go the stripe-and-bodykit route ...

Kenton Koch’s rise through the IMSA racing ranks shows a lot of perseverance and commitment. It has certainly enhanced an uncommon natural combination of talent and drive. And Koch gets it honestly, ...

Its carbonfibre bonnet is the first on a production Audi, with its unpainted sections referencing the IMSA-GTO racer. The front bumper is entirely new, featuring a deeper, lower central intake and ...

Audi has had a longstanding history both on and off the tarmac and one of its most notable, if short-lived, creations was the wild 90 quattro IMSA-GTO. To pay homage to the ‘80s racing car icon ...