BMW has a very long history with the art car. They're something BMW indulges in pretty frequently. Honestly, most German brands do. Given that BMW has a lot to celebrate this year, it displayed a number of them at its own BMW fan day at Zolder circuit in Belgium.

While far from the most famous of Belgian circuits, it seems fitting to display these art cars, which included many a BMW M3 and even a BMW 3.0 CSL, at Zolder. BMW has a history of racing here, just as it has a history of making art cars. While there were several others on display, Belgian Motorsport's video here focuses on nine art cars, each of which could easily be considered one of BMW's most iconic models.

More to the point, any of these cars would be considered rare even before they were done over by an artist's skilled hand. You can watch the video to see them all, so we'll keep it simple with the best ones.

Of course, that means we have to start with BMW art car Genesis, the Alexander Calder 3.0 CSL, which will soon be revived. Let's hope we get another art car out of that. This is certainly one of the more motorsports-focused art cars, with the livery looking more like something to lay sponsor logos on top of than art.

Then, of course, there's Ken Done's E30 M3 Group A car. Extremely 80s art aside, this one is neat simply because it's a Group A racer with an art car twist. The E30 was already a hardcore car, but the Group A was a 2,000-pound 350-hp monster of a racer, and an artsy livery only makes that much more spicy.

AR Penck's BMW Z1 is arguably the exact opposite of that E30 in just about every way. The art is a little more abstract, and the Z1 itself is nowhere near the racer the E30 is. On aesthetics alone, this might be our favorite. Something about the way the livery sits over the bodywork just makes this one work. We're not art majors, so it's a bit hard to articulate.

On to the last one that stuck out to us. Jeff Koons' M3 GT2 art car. Koons' take on the M3 GT2 car is probably the most recognizable of the BMW art cars, so it certainly deserves honorable mention. It's also one of the more modern ones, having shown up in 2010. We're hoping BMW decides to give us a new art car soon. The brand's 50th anniversary of M still has another six months to live on.