BMW F10 M5 - Forged Engine Rebuild - 690 BHP - Stage 1 - Downpipes After five years of ownership, I have made the difficult decision to sell my BMW F10 M5. I have thoroughly enjoyed owning the car and never originally planned to sell it, but my priorities have changed and I have decided to reinvest the funds into expanding my business. Having heard about the well-known potential issues associated with these engines, I chose to invest in a comprehensive forged engine rebuild, with reliability and long-term ownership in mind. The engine has been professionally rebuilt with forged components, including new pistons, turbos, injectors, timing chains, crankshaft bearings, water pump, oil pump and many other associated parts. The gearbox oil and differential oil have also been replaced. The car is fitted with downpipes and has been professionally Stage 1 tuned by Velocity Tuning to produce 690 BHP and 850 Nm of torque. The performance is incredible, and the car has a beautiful, deep V8 sound. A brand-new set of Michelin Pilot Sport 4S tyres was fitted approximately 200 miles ago. I have owned the car for five years and invested a significant amount of money in maintaining and improving it. The comprehensive engine rebuild is a major benefit, as many of the known concerns associated with the F10 M5 have already been professionally addressed. The car drives extremely well, feels very strong and is an absolute pleasure to drive. It is being sold purely because I have decided to release the funds for business investment, not because of any mechanical problem. Genuine buyers are welcome to view the car and inspect the available paperwork and invoices. No time-wasters or unrealistic offers, please.