Volvo Cars has now undercut the magical 100 grams carbon dioxide limit for the first time ever. The new Volvo C30 DRIVe was presented at the car show in Frankfurt on Tuesday. Featuring Start/Stop technology, the latest version of the Volvo C30 DRIVe uses just 3.8 litres of diesel per 100 km. Accordingly, it emits just 99 grams of CO2/km.