Ride and handling
Obviously, the 4MATIC all-wheel drive system significantly benefits the heavy R320 on wet or snow-covered roads. At 2,295 kilos (5,060 lbs), this vehicle is certainly not a ballet dancer, but because of its relatively short height (compared to regular SUVs), body roll is limited. The R320 offers surefooted and predictable handling on byroads as well as a solid stance on highways. In city traffic, it maneuvers quite well despite its elongated profile. Occupants enjoy a fairly good level of comfort, although a slightly softer suspension and/or seats would have been appreciated on Quebec roads.

Despite its massive stance, the R320 offers surefooted handling.

How about this diesel?
First of all, the new diesel engine achieves fairly high fuel economy. I averaged 11 L/100 km mostly by running errands. Secondly, despite the vehicle's weight, the AWD hardware and the reputation of diesel powerplants, the R320 CDI delivers convincing acceleration. I reached 100 km/h in 9.3 seconds (0.6 seconds slower than the automaker's figures) and sprinted from 80 to 120 km/h in 7.2 seconds with the manual mode (3^rd gear) and in 7.5 seconds with the automatic mode. What caught my attention was the way the R320 delivers these performances.

In normal driving, you almost feel like the vehicle is stationary; it's the engine's torque that makes it move forward. However, when you need extra power to pass another vehicle, the R320 CDI is catapulted as soon as you dip into the throttle. My driving partner and I found this behavior a little uneven and disconcerting, especially compared to the E-Class CDI Bluetec that really impressed us with its smoothness during a previous road test. This might be attributable to the programming of the 7-speed automatic transmission (otherwise very sleek) and to the weight of the vehicle.

Function over fun
Convenient but not exciting: this perfectly sums up my impressions of the R320 CDI 4MATIC after one week of driving. This Mercedes will satisfy buyers who look for an all-around people hauler and the prestige associated with the three-pointed star. Safe and spacious, the R320 also benefits, in CDI trim, from a precious ally: a powerful yet fuel-efficient diesel engine.


Diesel engine
AWD
Liveability
Versatility
            Rear side windows (power-assisted opening)


Austere interior
Engine/transmission combo lacks consistence




None


Photo Credit : Philippe Champoux