The Mercedes-AMG GT R is the range-topping version of the AMG GT, a coupe introduced in 2014. The GT R arrived in 2017 with a more aggressive design, a beefed-up engine, and increased performance. It’s the most powerful and expensive version of the coupe yet. At the 2018 Los Angeles Auto Show, Mercedes introduced a track-ready upgrade, called the AMG GT R Pro. Fitted with body parts and drivetrain components inspired by motorsport, the Pro bridges the gap between the road-legal AMG GT R and the race-spec GT3 and GT4 iterations of the sports car. It’s not more powerful than the GT R, but it features upgraded chassis and suspension components, it’s lighter, and a bit more aerodynamic. It’s a worthy rival for the Porsche 911 GT3 RS!