The GLS SUV is all new for the 2020 model year and brings with it a raft of big changes over the outgoing model. It will initially be made available in GLS 450 (362 horsepower, 369 lb-ft of torque 3.0-liter turbo inline-six) and GLS 580 (483 hp and 516 lb-ft of torque) flavors. Both will come with a new EQ boost technology which uses a 48-volt starter-generator to aid in stop-start situations and to provide more power (up to 21 hp and 184 lb-ft) at lower engine speeds.
All-wheel-drive and a nine-speed automatic transmission will be standard, and a low-range transfer case will be optional on the GLS 580. The new MBUX dual 12.3-inch infotainment system will also be part of the equipment list and will incorporate an interior assistant which can control a variety of functions through voice commands or hand gestures. A seven-seat layout will be standard and a whole host of luxurious extras will be available from five-zone climate control to a complex E-Active Body Control system, which can scan the road ahead and prepare the suspension to smooth out the ride. Pricing is expected to start at around $85,000.