What diet and excersize regime are formula 1 racers on?

May be...

The McLaren and Ferrari teams are all fit becuase they spend so much time running to the stewards office.

The Red Bull teams are all on suger highs and can't stop doing push ups and talking really fast (and dribbling).

Toyota are fit because they keep running around in circles.

Super Aguri get fit chasing after all the wheels that keep falling off their cars.

Force india are fit from running to the toilet so often due to all the curries they're eating.

Renault aren't fit, thats why they're cars are slow this year (too much extra weight).

BMW are fit because the entire team is made up of power ranges in crazy white costumes.

Weight training and cardio work is very common. F1, especially, is very demanding because of the high G's that are pulled which are physically exhausting. Drivers also watch their weight since cars are not handicapped for the drivers' weights.