You can no longer call it a trend or a fad. High-performance luxury SUVs are no flash in the pan. They’re here to stay and they just keep getting more powerful. Take this new 2021 Mercedes-AMG GLS 63. It isn’t only the most powerful SUV Mercedes has ever cooked up, with 603 horsepower it’s also the most powerful seven-passenger SUV on the market.
Mercedes’ in-house performance division has been increasing the performance of the brand’s SUVs for over 20 years. In fact, AMG invented the breed back in 1999 when it introduced the ML55, the fastest sport utility the world had ever seen up to that time. Some purists scoffed, but today half of all AMGs sold are SUVs and most luxury brands offer at least one high-performance sport-utility, including BMW, Porsche, Bentley, Lamborghini, Land Rover, and Maserati. Some, like AMG, offer several models — and the GLS 63 S is its largest and most powerful.