FWIW I have towed our race cars regularly and heavier cars occassionally with the following: Chevy G30 Van, Chevy Tahoe, Dodge P/U Cummins Diesel. I cannot comment on the Van because it isn't a very good example but the Tahoe ('96) is OK as a tow-vehicle for the race cars but the Dodge is staggeringly good for all. Our trailer is an open "utility" trailer that I guess is 1,400 lbs and we have 3 Porsche racers (Kremer Street c. 2,500 lbs, 911 c. 2,400 lbs, LeMons 924 less still). I have used the Tahoe for some heavier collector cars and felt I was pushing its limits ... needs more power and better rear suspension.