Thanks BTW I think I'll go with the flatbed...
My buddy told me he was flatbedding his 1994 Mercedes S class (big ass car) from GA to NY and the dolly wheels were weak as shit. The car bounced around the entire time and it sounded as if it was gonna break lose. anyway when he got to NJ the dolly's left rear wheel hit a rough bump in a WORK ZONE area and went flat. He almost lost control of the Uhaul and the Flatbed...good thing he wasn't speeding nor where they traffic right behind him. Anyway the rental company gave him hard time about sending assistance out there and told him to call the NJ state troopers and pay them to tow the whole thing.
What he and his travel buddy ending up doing, since they were so close to NY (2 hrs from home) and didnt wan't to get dicked over with a Tow truck company...They reversed and re-hitched the dolly to the U-haul so both fronts wheels were raised above the ground about 2-4 inches and the rear wheels were dragging with the car ontop. It took them a long ass time on the side of the highway in like 90 degrees sunny weather.
I can't see myself in that situation...but I rather flatbed and drive slow that drag my car with the front end down thru 6 or 7 states and over 1000 miles.
Plus when I get to Tallahassee I want my car high up so that the towns folk can bow down to the new Bimmer in town....and the new player in town!!!