The BMW M140i with a massive 730 horsepower is a hyper sedan

Gone but certainly not forgotten, the BMW M140i was indirectly replaced by the M135i but with two fewer cylinders and significantly less power. BMW used to sell the M Performance 1 series hatch with the choice of rear-wheel drive or all-wheel drive, but now you’re stuck with all-wheel drive or you can go for the front-wheel drive 128ti.

Today we’re taking a look at a revamped M140i from the F20 era with a dormant look because you wouldn’t necessarily be able to tell that it has nearly as much power as the Concept XM. Still with the original engine block, the uber hatch pumps almost twice the power of the original model while developing 730 hp. Maximum torque has increased significantly to 700 lb-ft (950 Nm) or 331 lb-ft (450 Nm) more than the standard version.

The B58 inline-six features an upgraded turbocharger and custom downpipe, not to mention methanol injection into the ports and a different intake. Because the owner has an insatiable thirst for power, he plans to remap the 3.0-liter engine, increase turbocharger pressure, and put race fuel in his attempt to unlock a mighty 850bhp. Remember, the amplified M140i still has the original eight-speed Steptronic Sport transmission as well as the OEM exhaust.

2018 BMW M140i xDrive Test Drive 10 830x553

Despite its plentiful power, the hyper hatchback remained reliable for nearly three years of ownership, with only the rear limited-slip differential having been replaced. The little BMW that could is fitted with OZ wheels with Michelin Pilot Sport 4 S tires. It also has carbon fiber side mirror caps to complement the roof-mounted rear spoiler and made from the same lightweight material.

At the risk of showing the obvious, driving is not for the faint-hearted. Sending well over 700bhp just to the rear wheels of a car that weighs a comparatively little 1,450 kilograms (3,197 pounds) from the factory requires a highly skilled driver to properly control the compact Bavarian monster. Add to the mix the less than ideal traction caused by rain, and it’s safe to say the M140i is pretty intimidating.

[Source: LivingLifeFast / YouTube]