'Flat' Cars

[oinksnork]

I am searching for the cars with the most flat surfaces (preferably the top section) so I could abuse them as mirrors. I was wondering if someone has any suggestions for what cars are best suited for this purpose.
Cars that have come to mind so far are the 70's supercars (Miura, 512BB, Countach, RX500, etc.) the sides of the Sambabus and the top of the F40.