Road and Track have reviewed the all new E320 BlueTec, the same one driven by the E320Guy, and as usually they are impressed with it. Here is the direct link and a excerpt

Slow? Hardly. This new 3.0-liter V-6 (despite what the E320 designation might have you believe) is intercooled and turbocharged, with the exhaust-stream hamster wheel made more responsive with a variable-vane arrangement similar to what’s used on the Porsche 911 Turbo. This steel-sleeved, aluminum-block engine makes 208 bhp and an axle-twisting 388 lb.-ft. of torque-the last stat nearly matching Mercedes’ 5.5-liter gasoline V-8-on tap from 1600 to 2400 rpm.