i like to find a used, still working aluminum race floor jack, a 3'4" piece of plywood that is a few inches larger than the jack foot print to give the jack extra support on soft surfaces, and to make sure there are no problems with electric batteries being dead, or low on charge, a 24 or 27" 1/2" drive hobo fright breaker bar with the appropriate size socket. these don't take up much space in the trunk, and will be guaranteed to be in working order if a tire needs to be changed. often times, you can pick up a piece of luggage that will be small enough to contain all the items needed CHEAP at the good will store. stores nice and also can be packed so you have NO rattles to listen to going down the road. works for me in my daily drivers, so i see no reason this setup would not work in a classic or hot rod.