Absolutely stunning! The building itself is unique and outlandish - a helical structure that dictates the spiral layout of the exhibits themselves. Everything from the carpark to the foyer (which is very bladerunneresque) and even the exit which delivers you into a showroom, will leave you awestruck.
The exhibits themselves are very smart in the way they seamlessly fuse the company's development and history with that of European history, so that visitors who are perhaps not so into cars can still enjoy the experience.
I would definitely go again.