Re: When to drive on new concrete driveway? I would wait a week to drive on it and a month to park on it, a mustang only weighs 3200lbs its not a 1 ton truck. Besides concrete guarantees you 2 things, 1 its expensive and 2 someday it will crack.__________________. A car takes 8940 bolts to be put together and only one nut to scatter it all over the road!!!! would wait a week to drive on it and a month to park on it, a mustang only weighs 3200lbs its not a 1 ton truck. Besides concrete guarantees you 2 things, 1 its expensive and 2 someday it will crack. __________________. A car takes 8940 bolts to be put together and only one nut to scatter it all over the road!!!!