Mercedes-Benz was the first manufacturer to put a diesel engine in a passenger car, and continues that tradition eight decades later with the latest E350 BlueTEC. But this upscale sedan isn't anything like the clattering, smoky diesel models you might remember from the 1970s and 1980s.
With a 3-liter turbo-diesel V6 and a smooth seven-speed automatic transmission, the E350 BlueTEC can return more than 32 mpg on the highway. And it's no slouch, either, thanks to 210 horsepower and 400 pound-feet of torque. Better yet, decades of refinement have significantly reduced noise and vibration, which don't disrupt the serenity of the cabin. If you're in the market for a luxury hybrid, Mercedes-Benz could have a better alternative for you.