IMSA

A road race in Chicago's Grant Park area will replace the race at Road America next Fourth of July weekend.

The Cayman gets buffed for out-of-the-box racing, all for a quarter-million-plus.

Porsche has chosen Canadian firm Multimatic to develop its LMDh race car to compete in the 2023 IMSA WeatherTech SportsCar Championship and the FIA World Endurance Championship (WEC).

A 1990 Nissan NPT-90 IMSA GTP race car that helped Nissan to the 1990 and 1991 constructors championships can be yours if the price is right.

Audi has decked out an RS 6 Avant with a vintage racing scheme and plenty of racing equipment in tribute to 40 years of its Quattro all-wheel-drive sytem.

One of two 1977 Chevrolet Corvette IMSA racers is for sale through Canepa.

A new PrototypeX class provides IMSA GTP and Prototype cars the opportunity to entertain us once again.

Acura will field this new prototype race car, the ARX-05, in the 2018 IMSA WeatherTech SportsCar Championship, the automaker announced Friday. The fifth-generation endurance racer takes the ORECA 07 chassis and powers it with a distant relative of the V-6 engine Acura fits to its sedans and SUVs...

Last July IMSA unveiled what has to be one of the most restrained modification efforts ever to touch a Lamborghini. The underlying concept is marrying Italian design with German engineering - not such an odd concept considering Lamborghini's VW Group parentage. Now they've added to their portfolio...