1988 BMW 6 Series - M635 CSI

Number of cylinders: 6

Service history: Present

Number of owners: 4

BMW 6-Serie M635 CSI, 1988. Four owners, 91,135 km, service books from new.

Throughout the 1970s and 1980s, Germany's BMW steadily built its reputation as a maker of driver's cars with a distinctly sporting character. The BMW 6 Series (internal code E24), introduced in 1976, embodied that philosophy as a luxurious Gran Turismo: long distances at high speed, with no compromise on comfort or refinement.

The absolute crown of this range was the M635 CSi (known in some markets as the M6). This model was developed by BMW Motorsport GmbH and inherited engineering derived directly from the legendary BMW M1. Beneath the bonnet sits the naturally aspirated M88/3 straight-six, a high-revving powerplant with individual throttle bodies that ranked among the most advanced road car engines in the world in its day. With its razor-sharp throttle response, mechanical feel and perfect balance, the M635 CSi grew into an icon among enthusiasts and collectors.

This example from September 1988 belongs to the final and most fully developed production years of the E24, making it the pinnacle of BMW's analogue M era.

This particular BMW M635 CSi carries an exceptionally rich provenance. The car was once owned by the French racing legend Pierre Maublanc. His name is inseparable from French motorsport, which makes this M635 CSi not only technically but also historically compelling. Its French first registration underlines this authentic origin.

The story continues on our website, where the full file is kept as well. 77 photographs. The service history, scanned in full. The Carfax report. Paint thickness measured panel by panel. The original factory brochure to page through. A timeline from 19 September 1988 to today, with every owner and the mileage year by year in a single graph.

Every car here follows the same route: first pre-market, then the showroom, and finally the live auction on our own site. What changes is the way you buy, not the location — once a car has arrived, it stays with us in Katwijk. This one is in the showroom and you are welcome to come and see it, no appointment needed. You buy it here at a fixed price: no bidding, no waiting. Our showroom in Katwijk, 30 km from Amsterdam Schiphol, is open Mon–Fri 9–18 and Sat 10–17. Call ahead and it will be standing ready, with someone free for you.

Within the EU no customs duty arises on this purchase. Registration tax and registration costs in your own country are not included. We supply the export documents and assist with the registration. The price shown is the full price for collection in Katwijk. We arrange insured door-to-door transport worldwide, cost quoted per destination beforehand.

Prefer a different colour or specification than this example? Tell us what you are looking for — another BMW we can often find through our network of marque specialists and collectors, outside the listings. Have one of your own: we buy exceptional cars outright, classic or modern.

Our showroom measures 6,000 m², with over 150 cars under one roof. You are just as welcome if you are not buying — walk around, take your time and enjoy the cars; sharing the enthusiasm is half of it.