The Mercedes-Benz GL-Class is offered in three variants: the GL320 CDI, GL450 and GL550. The latter features the most powerful engine, a more pronounced front grille and most of the less expensive models' optional features. With all GL-Class models, Mercedes has done its research and knows what's expected in this segment.

The GL has generous well-appointed seating for up to seven passengers, a roomy cargo hold, supremely capable all-weather performance and the ability to tow the typical myriad lifestyle accessories. Standard niceties include powered and heated front seats, dual-zone automatic climate control, power-folding third-row seat and a full complement of airbags and advanced safety equipment.

All GL-Class models come equipped with a seven-speed automatic transmission with manual shift control. They also all come with air-adjustable suspension and an all-wheel-drive system that requires no driver input -- a wonderful system for the road.