If we were to pick our favorite BMW tuner, it would probably have to be Alpina. The Buchole-based specialized in all things coming from Bavaria introduced this week the diesel alternative of the M3. It’s based on the M340d xDrive, but its inline-six 3.0-liter engine has been massaged to deliver an additional 15 horsepower and 30 Newton-meters (22 pound-feet) of torque. It now pumps out 350 hp and a gargantuan 730 Nm (538 lb-ft), which are insane numbers for a 3 Series that’s not an M3.

Alpina says its upgraded top-of-the-line 3 Series diesel goes from 0 to 62 mph (100 km/h) 4.6 seconds or 4.8 seconds if you opt for the wagon. Flat out, the sedan can hit 170 mph (273 km/h) whereas its more practical but heavier sibling maxes out at 168 mph (270 km/h).

The power bump is complemented by a revised eight-speed automatic transmission, 20-inch wheels with Alpina’s signature 20-spoke design, while the suspension and chassis tweaks have been borrowed from the gasoline-fueled B3.

The asking price for the 2021 Alpina D3 S? €70,500 for the sedan and €71,900 for the Touring at home in Germany, with deliveries kicking off in November.