1990 BMW Z1

KEY FACTS An exciting modern classic roadster, this BMW Z1 has been significantly upgraded with a potent E34 M5 engine and other performance enhancements. It is now powered by a 3.5-litre S38B36 inline-six engine from a BMW M5, driving the rear wheels via a five-speed manual transmission. First registered in 1990, this German-delivered car has reportedly had three owners in total, and has been with the current keeper for 18 years. The seller notes that the modifications – including engine, transmission, brakes, suspension, exhaust system, and wheels – are fully documented in the original vehicle registration document. Its engine capacity is officially recorded as 3481cc. The odometer shows 33,000 km, which the seller believes to be the total driven since the engine upgrade. EQUIPMENT AND FEATURES The car is finished in Dream Black Metallic, while inside there are Recaro Pole Position bucket seats finished in black and red. Key modifications include the BMW E34 M5 S38B36 engine, BMW M5 gearbox, BMW E36 M3 suspension and brakes, additional gauges for oil pressure and oil temperature, Momo Millenium steering wheel, white indicators, lightly red-tinted rear lights, stainless-steel Lorenz aero fuel cap, and a stainless-steel Lorenz exhaust. Accompanied by its Fahrzeugschein, Fahrzeugbrief, invoices, and two keys. CONDITION Please refer to the photo gallery to assess the exterior and interior condition. Specific notes from the seller include: age-related minor signs of use. Repainting work was done during the previous ownership, and there is some paint damage on the right fender and bonnet. SERVICE HISTORY The seller states that it was most recently serviced in April 2025 at 33,000 km, which included an overhaul by renowned BMW M and S38 specialist Wolfgang Tegethoff (Tegetech Power). This included: renewal of connecting rod bearings and connecting rod bolts, installation of a new oil pump, checking and adjusting the valve clearances, inspection and repair of the entire l