My 3 car garage regularly holds 4 cars. The most I've had is 5 cars in it, and that was pretty crazy. Even my mechanic buddies (who regularly pack cars into the shop) were amazed that I could fit two Corvettes, two TR3s and a TR8 into a 3 car garage. (Yes, I used wheel dollies to move the second TR3 width-wise in between the other cars and the work bench.