Is the most powerful and exclusive Aventador worth nearly $600,000? What about a 603-horsepower luxury SUV makes sense? This may be the ultimate daily driver for the supremely affluent. Can the revamped three-row SUV compete with class leaders like the Kia Telluride? From its 603-hp engine to its 11 USB-C ports, the new GLS 63 is big time. The AWD hatchback loses some of the Mazda DNA on its way to becoming a luxury vehicle.