With all the on board fuel you could carry (30 gallons) you'd have about 10 minutes of play time before the tanks ran dry. (30 gallons at todays prices....hi test only, by the way... gives you a 10 minute ride for $120.00.) It would also tear up the landscape something fierce. For those of you unafamillier with tracked vehicle maintaince...that much horsepower...coupled with a driven track would give you a maximum track life measured in weeks. (a custom track set would cost 3 grand or more.)
Other than that....it's a cool enough concept.