Differences in HP

[mindgam3]

Between your garage and the replay screen....

Eg, my Audi R8 is just under 600 in my garage and over 700 on the replay screen, anyone know why its different?

Best suggestion i heard is its the bhp per tonne figure....

Isn't the oil as this only effects it in small increments

[Pimp Racer]

On GTP or somewhere I heard someone say their R8 had 600 or so and then after the replay like 640? Are you sure it was 700 because that sounds really high up there! I mean a 100 HP difference bettween the power at the wheels and the power at the shaft.
But yeah I guess the only answer is the BHP reason.