1998-2005 Mercedes-Benz M-Class: Road Test

Seeking to create an SUV that drives like a car, Mercedes-Benz took a clear lead. A Lexus RX 300 or BMW X5 feels more carlike, but few true SUVs are more pleasant to drive than an M-Class. Though an ML320 isn't that snappy moving from a stop, the smooth, responsive automatic transmission helps get the best out of its V6 engine. V8 models are noticeably quicker. An ML320 accelerated to 60 mph in 9.1 seconds and averaged 13.9 to 15 mpg. The ML430 doesn't offer great off-the-line punch, but gathers speed quickly and has good passing power. Enlarged V6, added in 2004 could hit 60 mph in a tad under 9.0 seconds. An ML430 averaged 15.7 mpg. Improved 5.0-liter V8 for 2002 had a 0-60 mph time of just 6.6 seconds, but averaged just 14.6 mpg. The high-performance ML55 raced to 60 mph in just 6.2 seconds, but got only 12.9 mpg. Wind and road noise are low for an SUV, if higher than those of the RX300. V8 engines emit a throaty roar under hard throttle, but the V6 sounds coarse when pushed. Poised and stable in tight turns, the ML320 moves with far less body lean than most SUVs. Steering is precise and linear, though self-centering is weak. Braking is strong and stable. A smooth, supple, on-road ride is the rule in an ML320. Firmer suspensions and low-profile tires make other models stiff over bumps and broken pavement. Although the unique 4ETS system works transparently in light-duty, off-pavement driving, it's not as effective as traditional 4WD setups in heavy snow or on demanding off-road trails. Four adults have ample room, and three can almost fit comfortably in back. The rear seat slides forward about 3 inches for extra cargo space, but rear leg room then becomes tight. Step-in height is much lower than the SUV norm. Unusually wide doors provide easy entry/exit. Controls are easy to find and use, though some markings are not obvious. Optional navigation system is hard to operate and complicates audio controls. Outward vision is fine forward, but a bit cluttered by headrests directly astern. Load volume is ample and easy to use, with a low, flat floor. Sturdy construction is evident, despite occasional body shudder on rough surfaces.

Value for the Money
Mercedes leads the true-SUV pack for its blend of refinement, handling, overall competence, and carlike convenience. Strong resale values keep prices high. Over time, competitors SUVs have overtaken the M-Class in refinement and luxury, but only a Range Rover offers more off-road prowess with this level of on-road competence.