AC Schnitzer has taken the wraps off a massively upgraded BMW 1-Series on the dawn of the Essen Motor Show.

Last week we talked about BBM Motorsport’s BMW 3-Series with the engine from an M550d and now AC Schnitzer has done the same thing to the smaller 1-Series. As if this wasn’t impressive enough, the tri-turbo 3.0-liter six-cylinder engine was massaged to boost output from 381 PS (280 kW) and 740 Nm (546 lb-ft) to 400 PS (294 kW) and a gigantic 800 Nm (591 lb-ft) of torque.

The added diesel punch enables this “BMW 150d” by AC Schnitzer to run the 0-62 mph (0-100 km/h) sprint in 4.5 seconds and do the 50-112 mph (80-180 km/h) journey in only 7.9 seconds.

Aside from the extra oomph, the three-door diesel hatch also has a new front apron, carbon fiber side mirror caps, and a roof-mounted rear spoiler. The tuner is offering a variety of 18- to 20-inch alloy wheels, including this 20-inch set coupled to 235-mm front and 300-mm rear tires.

Rounding off the exterior changes is the new set of suspension lowering springs and custom exhaust tips. Stepping inside the cabin, AC Schnitzer says the tuned 1-Series boasts metallic accents, new floor mats, aluminum pedals, and a custom gear knob.

The “BMW 150d” by AC Schnitzer is currently on display at the 2015 Essen Motor Show.

Gallery: AC Schnitzer squeezes tuned M550d tri-turbo engine inside 1-Series for Essen

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