400-420BHP Dyno Proven | Limited Slip Differential | Stage 2 | M140i Digital Dash | M Performance Exhaust | Extensive BMW History A properly developed BMW M135i Automatic we supplied to a customer in May 2026 who recently upgraded. It is producing approximately 400-420BHP, supported by a Dynojet printout and an extensive BMW main-dealer and specialist history. Originally white and now professionally wrapped in Ruby Red, with the colour correctly registered with the DVLA. The specification is what separates this car from the usual M135i. Most notably, it benefits from a limited-slip differential - an upgrade costing approximately £2,500 - alongside an M140i digital dashboard, rare red BMW interior, heated seats, satellite navigation, reverse camera, M Performance exhaust and upgraded BMW alloys. Performance development includes Stage 2 engine and gearbox calibration, upgraded fuel pump, induction kit, sports cat, braided brake lines and drilled discs, with exterior additions including a front splitter, side skirts, rear valance, air dam and carbon mirror caps. This is not a collection of modifications; it is a carefully developed example supported by the maintenance and documentation to match. History includes Dick Lovett BMW Bristol, Williams BMW Manchester/Rochdale and respected BMW specialists, with consistent annual servicing and extensive supporting paperwork. Recent preparation includes: * Front Discs & Pads * Rear Brake Pads * Rocker Cover Replacement * New Oxygen Sensor * Full Vehicle Health Check Further documented maintenance includes a gearbox service at 93k, full service with spark plugs and tyres at 88k, discs and pads at 86k, recent rear tyres, replacement headlights, BMW airbag recall and replacement paddle shifter. Please note the replacement headlights require coding however work perfectly. Free delivery within 50 miles, nationwide delivery available, 360 virtual video walkthrough, test drive, drive-away insurance and complimentary valet included. A difficult M135i to replicate: rare specification, significant performance development and the maintenance record to support it. Viewings by appointment only. Deposit today to secure your next car.