Indianapolis Motor Speedway may host a second U.S. Grand Prix with all three GP classes–MotoGP, 250cc GP, 125cc GP–in 2008 as long as required course safety improvements are made. A commercial agreement is already in place, although contracts have not been signed, according to sources in the MotoGP paddock. If the deal goes through, the second U.S. Grand Prix will be held in September, 2008. A delegation from FIM inspected the track earlier this week. Details will be posted as they become available.