accelerating very slowly- the bumps knock it around quite badly, and it's very twitchy with the d.f set to minimum. also realized the toe-angles were set to - and +1 front and rear standard, which may have scrubbed some speed. car makes less power now so there's no point trying again
it's geared to do 507 (which you can't change), you should be able to get 490 or more if you cruise up behind a Le Mans car 3/4 of the way down the straight and get an aero tow