Guaranteed to shed those pounds, all you have to do is:
1. Buy your first scoobie
2. spend four amazing days trying to make a
dent in the 1ooo mile run in period.
3. you'll be so preoccupied you'll forget to
eat anything!

WARNING:
the down side is, you'll be in petrol stations so often that you may succumb to 'chocolate grazing' thus negating the effects of the 'Impreza Diet'!
Oh and you'll also be £ounds lighter!