Competing in the fullsize SUV segment, the 2017 Mercedes-Benz GLS-Class SUV goes up against other notable names in the class, like the Lincoln Navigator, the Volvo XC90, and the Cadillac Escalade. Spread across 2 trims, the 2018 Mercedes-Benz GLS-Class starts off at a base price of MSRP $68,700 and carries on to $93,850. Not all trims are built equal, however, as there are 2 powertrains on offer. Starting off is the 3.0L twin-turbocharged V6 and 9-speed automatic transmission base engine. Making 362 horsepower and 369 lb-ft of torque, this engine makes the Mercedes-Benz GLS-Class capable of accelerating from a standstill to 60 mph in just 5.0 seconds and carries the capability to tow 7,500 pounds. One can also opt for a bigger 4.7L twin-turbocharged V8 engine that is paired to the same 9-speed automatic transmission. With 449 horsepower and 516 lb-ft of torque, this engine gets you the same towing capacity of up to 7,500 pounds.