The BMW M135i xDrive caused quite a stir when it replaced the much-loved straight-six, rear-driven M140i. But tuners still see potential in the downsized engine and all-wheel-drive system. One such tuner is Lightweight.

Yes, the company has handed the Bavarian hot hatch ostensibly improved handling and a visual makeover.

The Misano Blue example pictured here has gained a carbon aerodynamic package which includes a front spoiler, gurney flaps, a rear apron insert and a rear spoiler attached to the hatch. Acknowledging the M135i’s 225 kW/450 N.m turbocharged 2,0-litre four-cylinder engine can't match the sound of its predecessor’s six-pot, Lightweight has installed four 89 mm carbon tailpipes.

The German tuning firm has also made changes to the M135i’s chassis, rendering the hot hatch more capable round racetracks. Using a set of Eibach springs, the ride height has been dropped by 20 mm. A set of Hankook S1 Evo tyres wrapped round 20-inch high-gloss black wheels has been added, too.

What about under-bonnet performance? Well, Lightweight has confirmed it has developed a power package but it is yet to be approved by Germany’s inspection and certification officials...