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TORQUE. The new Mercedes C320 CDI has that in spade- fulls. In fact, there’s no die- sel passenger car on the market today with more of it. What’s more… Mercedes says the colossal 510 N.m is available from as low as 1 600 r/min, all the way to 2 800. The result? Smoke… Out on our test strip, with the traction control deactivated, this diesel C-Class will sit on the line and do spectacular burnouts as it pretends to be a C55 AMG! How- ever, exercise some control over your right foot, get the amount of throttle right, and you’ll reach 100 km/h in 7,26 seconds. That’s fast… by any standard, petrol or diesel. The secret of this mighty new turbodiesel executive is a latest gen- eration common-rail, turbocharged and intercooled V6 that produces 165 kW at 4 000 r/min.The engine features newly developed piezo- injectors that are claimed to operate at a higher speed and more precise- ly than the previous solenoid valves. This ensures a finely metered fuel supply to the cylinders. As a result, the fuel injection can be precisely adjusted to load and engine speed, with up to five injection pulses per combustion cycle at a peak pres