You could win Shell fuel by guessing how far a VW Transporter travels on a single litre. Plus: see how far the Subaru Impreza went.
To enter: http://uk.cars.yahoo.com/drive-smart/one-litre-challenge/
Guess how far a Subaru Impreza WRX STi will travel on a single litre of fuel and you could win fuel vouchers courtesy of Shell
To enter: http://uk.cars.yahoo.com/drive-smart/one-litre-challenge/