yeah, we drove last year - went through cleveland so we could see the R&R hall of fame.
basically, we left monday night, drove for 5 or 6 hours. then visited Jim Beam and Makers Mark in Kentucky - finished up in manchester on wed night.... without stopping, its about a 19 hour drive. so unless you are totally manic about it, it's going to take 2 days. in theory, you could leave wednesday morning at god knows what time and be there for thursday. but that would suck...and would be a bad way to start a 4 day music festival. imo anyway.
Sorry but I don't think you want to split my gasoline bill. It's around $500 round trip....from New Jersey to Bonnaroo In 06 it was just my wife and I, in 07 we went with another couple an split the fills at the gas pumps. I think this year we are going to by ourselves again.