Sizzling hatch made hotter! This was once a BMW M135i xDrive with the N55 engine, however the proprietor determined to spice issues up. Beneath the hood is now an S55 borrowed from an F80 M3, bringing a considerable soar in energy. The unique engine had 315 hp whereas its alternative packs 425 hp. Torque can also be method up, leaping by 100 Nm (74 lb-ft) to 550 Nm (406 lb-ft).

We get to see the three-door hatch (F21) being pushed to the utmost in Germany on an unrestricted part of the Autobahn. Eagle-eyed readers will discover the aftermarket digital instrument cluster inside an in any other case inventory cabin from an period when BMW interiors had loads of buttons. Regardless of the engine transplant and customized quad exhaust, the automobile doesn’t sound significantly thrilling, nevertheless it certain is fast.

This M135i comes from a golden interval in time when BMW was making the 1 Sequence on a rear-wheel-drive platform. At present’s automobile is constructed on an FWD structure, and it’ll be the identical story with the next-generation mannequin coming later in 2024. Again within the day, the German luxurious model was promoting the M135i with customary RWD and elective xDrive whereas these days it’s an AWD-only affair.

This amped-up M135i isn’t probably the most hardcore construct we’ve seen since different lovers have completed V8 swaps. However, it’s a fast Autobahn missile, though we’re left questioning why it nonetheless has a high velocity limiter. A guide gearbox would’ve made it even higher, and we might’ve truthfully stored the unique analog dials.

The F20/F21 1 Sequence wasn’t the prettiest automobile BMW within the 2010s however the LCI did enhance issues right here and there. The cabin has aged gracefully, which we’re unsure we’ll be capable of say about present interiors with supersized screens. Seeing the glass half full, at the least we’re getting one other M135i xDrive.

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