The GL-Class is a larger luxury SUV from Mercedes-Benz. With three rows of seating and larger dimensions, the GL slots above the M-Class in the Mercedes lineup. The GL range includes three all-wheel-drive models with alphanumeric designations corresponding to their powertrain. The GL450 is powered by a 362-bhp V8 engine. Output increases to 429-bhp in the GL550 V8 model. The GL line also includes a diesel model, the GL350 BlueTec. In terms of legroom and cargo volume, the GL-Class is on par with other vehicles segment.