WhatGreenCar's top 10 green cars to watch in 2010

1. Peugeot iOn electric — CO2: 0 g/km — WGC Rating 10 Photograph: guardian.co.uk 2. Nissan LEAF electric — CO2: 0 g/km Photograph: guardian.co.uk 3. Toyota Plug-in Prius hybrid — CO2: 59 g/km (expected) Photograph: guardian.co.uk 4. Audi A1 — CO2: Photograph: guardian.co.uk 5. Toyota Auris hybrid — CO2: Photograph: guardian.co.uk 6. Citroen DS3 HDi — CO2: 99 g/km (expected) Photograph: guardian.co.uk 7. Volvo S60 — CO2: 119 g/km (expected) Photograph: guardian.co.uk 8. Ford C-MAX — CO2: TBA Photograph: guardian.co.uk 9. Honda CR-Z hybrid — CO2: TBA Photograph: guardian.co.uk 10. BMW 5 Series — CO2: TBA Photograph: guardian.co.uk