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 ...

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

The first 60 minutes and last two hours will air on NBC. USA, IMSA.TV and YouTube will share the middle portions. After that, IMSA, NASCAR’s sports-car cousin, will hibernate for six weeks.

The IMSA WeatherTech SportsCar Championship features by far the highest level of technology in American motorsport. It’s therefore no surprise that a growing number of America’s leading technology ...

This procedural change in the homologation process used by the WEC may facilitate more Hypercar entries in IMSA events. Thus far, Ferrari, Peugeot and Toyota, all built to the Hypercar rules ...

You may have seen the RS6 GT – Audi’s last-of-the-line, 90 Quattro IMSA GTO-inspired mega wagon. Despite a £180,000 price tag and a slightly questionable tri-tone sticker package, all 60 UK ...

Two Valkyrie Hypercars will compete in WEC, and one will compete in IMSA. Like the road car, the racer sports a 6.5-liter naturally-aspirated V12. This year’s 24 Hours of Le Mans is shaping up ...

When most people think “Pontiac GTO,” the first thing that comes to ... Cars Roundup A Half-Priced Polestar 1, A Mid-Engine Toyota Van And A Basically New 22-Year-Old Dodge Viper In This ...

Increased opportunities are part of the rising tide created by the convergence of hybrid prototype rules between IMSA and the World ... Porsche and Toyota, an era that ended 10 years ago.

Need a break? Play the USA TODAY Daily Crossword Puzzle. This weekend also features two IMSA VP Racing Challenge Series races. The 45-minute sprints will begin at 2 p.m. Saturday and 1:20 p.m. Sunday.