DJ Morris 5000 11 years 66 days ago (edited 11 years 66 days ago)
Infact,if you have 100 reward points you can revitalise your driver instantly to 100% health.
To check go to 'account' in the top right hand corner of the screen and select 'rewards'. If you have enough reward points then select 'revitalise driver'.
If you don't have enough reward points then I think you can pay for reward points aswell (real money,not in-game money)
EDIT: Go to 'top up reward points' and you can get 100 points for £3. I don't usually think new players should use the reward points system so use it just this once and then forget that it exists for a few months whilst you master playing the game. This should now allow you to focus on training other areas of your driver but don't completely forget about health of your driver (don't let it fall below 90%)