The entry-level 5-series , the 525i, shared its 189-hp 2.5-liter inline Six and 5-speed gearbox with the smaller 325i. The 535i had a 3.4-liter I6 engine with 208 horsepower. The M5 was brought back this model year with an even bigger 3.5-liter I6 engine with 310 horsepower. 1993[] Electromobility 24.05.2023 7 Min. Excellent through and through. More comfort, entertainment, and driving pleasure. The eighth generation of the BMW 5 Series makes its market debut in October. More than almost any other car, it stands for the success of the brand. The BMW 5 Series is firmly at the heart of the brand:: since the first generation Research BMW before buying or leasing with expert ratings, in-depth reviews, model comparisons, and more. Get BMW listings, pricing & dealer quotes. 2023 BMW 5 Series M550i xDrive BMW M vehicles are specifically engineered and designed for performance driving. Every aspect is optimized with performance in mind – the aerodynamics, suspension, exhaust, brakes, seats, steering, wheels, and more. The iconic M TwinPower Turbo engine, capable of delivering up to 617 hp, can only be found in BMW M vehicles. C1v7I8.