I'm pretty sure the Bugatti uses specially made tires that are wide as hell and can withstand the 250 mph speed. I think at full throttle the gas in the Bugatti lasts about 12 mins. Look up the Top Gear video of it.
Edit: here it is http://video.google.com/videoplay?d...514&start=0&num=10&so=0&type=search&plindex=2
Based on our government's attitude toward evil gas and evil oil and evil SUVs, we'll be lucky if we're driving go-carts with old lawn mower engines 50 years in the future.Maybe 50 years in the future well all be driving cars like the Bugatti and some other car will be the benchmark to aspire to.