BMW 528i M30 engine 3.5ltr 1978 polaris project

No museum piece. No trailer queen.
Just pure character, muscle, and a wonderfully raw edge.

This impressive BMW 528i was originally delivered in the Netherlands and has evolved into a true driver’s project for the enthusiast who appreciates performance and personality over perfection.

Under the bonnet, the original 2.8-litre engine has made way for a far more exciting 3.5-litre BMW M30 inline six-cylinder engine sourced from an E28, producing approximately 210 hp. Paired with a 5-speed manual gearbox and a 40% limited-slip differential, this BMW delivers serious performance along with the unmistakable sound and feel of a classic German sports saloon.

Thanks to the upgraded camshaft, spaghetti exhaust manifold, and fully custom-built exhaust system, the engine sounds absolutely brutal and feels sharp and responsive throughout the rev range. The suspension has also been upgraded with red Koni shock absorbers all around, resulting in a tight and sporty driving experience.

The bodywork was restored in the past and remains finished in its original Polaris Metallic Silver. Naturally, signs of use have returned over time, including some bubbling in areas of the bodywork, while the sills require localised welding attention. This is not a car for someone seeking perfection, but rather an ideal opportunity for an enthusiast who wants to drive, improve, and develop the car further over time.

The interior offers classic BMW atmosphere, featuring a clean dashboard with wood trim, complemented by a MOMO Alpina sports steering wheel and wooden gear knob. The Recaro seats are not factory original but provide excellent comfort and support. The door panels and headliner are both in tidy condition.

In summary, this is an honest and exciting BMW with a serious drivetrain, aggressive soundtrack, and huge potential. Perfect for the enthusiast who prefers driving over polishing and isn’t afraid to put their own stamp on a classic.

With some technical attention, this BMW can quickly return to the road, or it could be restored back to completely original specification.

The car retains its original Dutch registration, and export is possible without any issues.