The German automotive giant BMW is about to make a big splash at the 2011 Detroit Auto Show, with no less than three unveilings.

First up will be a slightly tweaked version of the current 1-series coupe and convertible, which is getting a face-lift. The recently announced 1-series M Coupe will also be present at the show, which will surely get the enthusiasts pulse racing.

But this won’t be the only new M-edition car on the stand, as BMW will also be showing a version of its new X3, with an M-sport package. (An X3 M model, rumored to be in the future product lineup, is illustrated above).

Unfortunately it  won’t be packing any extra grunt, but it will have a sportier appearance, thanks to revised bumpers and sills, and it will also be wearing 20-inch alloy wheels. Since it is just an appearance package, it will be available with any engine option and considering the X3 xDrive35i already makes 300-hp, it’s not exactly a slouch.

In addition, the all-new 6-Series Convertible will officially be revealed with a 4.4-liter twin-turbo V8 that produces 400-hp and will send power to its rear wheels via an 8-speed automatic transmission.

Check back January 10th for complete coverage of the 2011 Detroit Auto Show.

[Source: Evo]