Mercdes-AMG GT R Roadster Powertrain and Performance

The AMG GT R Roadster is powered by the same 4.0-liter V-8 as the rest of the AMG GT lineup and, like the coupe it’s derived from, it delivers 577 horsepower and 516 pound-feet of torque. This puts in on par with a lot of amazing sports cars out there, so throughout this review, we’re going to compare it to the equally powerful but significantly less expensive Jaguar F-Type R Roadster and the more expensive but rear-engined Porsche 911 Turbo Cabriolet.

This diversity is important, though, as the GT R Roadster really doesn’t have a direct competitor if you look at every single aspect – price, power output, straight-line performance, availability, etc. While the competitors offer AWD, the GT R Roadster is offered in RWD – something that increases the fun factor but can also make it a little more challenging to drive. It also falls short in the fuel economy department, but we’re not sure that’s really an issue when it comes to a car like this.

HOW FAST IS THE MERCEDES-AMG GT R ROADSTER?

According to Mercedes, the AMG GT R Roadster can blast to 60 mph in as little as 3.5 seconds and will reach a top speed of 197 mph if you push it to the limit. That’s the same sprint time you’ll get in the GT R Coupe and just 1mph slower in terms of top speed.

How Fast Can the Mercedes AMG GT R Roadster Get to 60 MPH?

The Mercedes-AMG GT R Roadster can hit 60 mph in as little as 3.5 seconds. Two of its main competitors, the Jaguar F-Type R Convertible and the Porsche 911 Turbo Cabriolet, can make the same sprint in 3.5 seconds and 3.0 seconds, respectively. We’re still waiting on the 992-gen 911 Turbo Carbio to make it to dealers, so there’s a good chance it will be just a tad bit faster when that happens.

It should be noted that during our week with the AMG GT R Roadster, we were able to meet the 3.5-second sprint time on a regular basis and, every now and then, we were able to get to 60 mph in 3.4 seconds.

What is the Mercedes-AMG GT R’s Top Speed?

The Mercedes-AMG GT R Roadster tops out at 197 mph if you give it the business for long enough. In comparison, the Jaguar F-Type R Convertible will fall short in the long run at 186 mph while the Porsche 911 Turbo Cabriolet beats it at 198 mph. We suspect that the 992-gen 911 Turbo Cabrio could push its top speed to 200 mph, so you can consider in the hand’s down winner for both sprint performance and top speed performance.

WHAT KIND OF FUEL ECONOMY DOES THE AMG GT R ROADSTER GET?

Unfortunately, the AMG GT R Roadster, while good at many things, doesn’t excel at being fuel-efficient, with ratings coming in at 15 mpg in the city, 20 mpg on the highway, and 17 mpg combined. It actually performs worse in this regard than bother the F-Type R Convertible and the 911 Turbo Cabriolet, the latter of which beats out the GT R by 3 or 4 mpg in every type of driving scenario.