That old saying is true: money can’t buy happiness. We’ve also learned that it can’t buy taste. However, what it can buy is a whole lot of impressive cars with even more impressive modifications. Performance is all well and good, but what’s going on in that cabin is just as important. After all, you’re going to be spending a lot of time there. You wouldn’t want to slip and put your eye out on a ruby-encrusted gearshift. From the sublime to the shameful, these are the  Most Outrageous Custom Car Interiors.