i The original WW II jeep would sell like hotcakes, same for 1964 Corvette StingRay. Might even be a market for some of the old Cadillacs that drove down the highway like a dream. I have a new Highlander that rides like a lumber wagon compared to my 2001 Ford Expedition.
Mahindra makes a near duplicate of the 1946 Willys jeep but it can’t be legally road driven due to the government safety regs. Yet you could buy a real 46 with bad rings and worn out brakes with a death wobble and that could be easily registered and road driven.