Jeff,
If you're getting 10 mpg out of a 454 Suburan, while you're towing, you're doing great! We pulled a 20' enclosed trailer w/ an EP RX7 to Road America las year w/ a 2500 Vortex 454 2WD Suburban, and the best we ever got was 7mpg. Most of the time, it was 6 - 6.5 mpg.
Ron,
I know a guy that has a mid-70's Pontiac Catalina wagon w/ a 455 in it. Passes everything but a gas station!
I'd love to have a V10 TDI Toureg as a tow vehicle, but I'd have to sell the race car and trailer (as well as the house) to be able to afford one. I wish VW would put that motor in a truck!!!!
For an open trailer, an F150 or a C/K 1500 is probably fine. Forget it w/ an enclosed trailer. The first year I had my 24' Haulmark, I used my '89 K1500 w/ a TBI 350 in it to tow. It was fine as long as the road was flat!
I'd go w/ either a Ford w/ a PS, or the 6.0 Chevy HD. Go w/ at least a 2500 (required w/ both of these engines). And you may want to rethink 4WD if you go to tracks w/ grass paddock areas. I've seen plenty of 2WD trucks get stuck trying to get out of a wet paddock.
Something else to consider, although not very common, would be something like an E250 van w/ a PS. You can order them that way, and used ones are out there (I've even heard of 4WD versions).
To me, the only way to go is enclosed trailer. No unloading everything when you get home. Makes a nice place to store the car, out of the weather. And it makes a nice place to crash at the track. I set up mine w/ a TV, VCR (need a cheap DVD), coffee pot, microwave/toaster oven, and plnety of lights. We've slept 4 people in there w/o any problems.
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