Got a second C4 today.

Pretty car. With red, black, and white making up almost 60% of total production of 40,000 85's the other colors aren't very prolific. Most are in the 1000-1500 units range. Like gold and two-tone blue.

If you get in a "fight" with a tire shop regarding wheel installation, read the back side of the wheel. Cast right into the center is "Install Right / Left Side Only". Really hard to miss. The spokes "grab" the ground. There's a discussion by Jerry Palmer about which direction is correct in one of the coffee table books about the development of the C4.