Sorry, but I find the BT 46, the Brawn 01 and the Brake Steer MP4-12 so different in rule-bending than cars with a hidden fuel tank, that this museum would be very unbalanced.
The GT-One didn't have a hidden fuel tank, if that's the one you mean. The regulations at that time mandated that every GT car had to have enough 'storage space' to hold a single suitcase or something like that. GTs were supposed to be production-based road cars, after all. Some teams let some space for that in the bodywork, Toyota argued that the actual fuel tank would qualify, as it could hold a suitcase easily.
So basically, they had no tank at all, just a trunk that was used to store...uhm...fuel.
Edited by dau, 28 November 2013 - 17:06.