Vauxhall is launching its first car with CO2 emissions lower than 100g/km in January with a revised version of the Corsa EcoFLEX.
The car will be the most fuel-efficient Vauxhall ever, with the three-door version achieving 76.3mpg on the combined cycle, and with CO2 emissions of 98g/km.
The five-door version has CO2 emissions of 99g/km and offers a significant improvement over the current Corsa EcoFLEX at 105g/km.
Despite the reduction in CO2, the revised Corsa EcoFLEX squeezes an extra 20bhp from its 1.3-litre diesel engine, thanks to the use of a variable geometry turbocharger helping to improve both performance and efficiency.
Power is now 95bhp instead of the 75bhp on the previous EcoFLEX, while pulling power is also increased from 169Nm to 190Nm, available from just 1750rpm.
The Corsa is capable of reaching 62mph from rest in 12.3 seconds and has a maximum speed of 110mph.
Using the chassis and aerodynamic modifications of the current EcoFLEX, the revised model also comes with a ride height 20mm lower than a standard Corsa, with low rolling resistance tyres on 14-inch steel wheels on the entry level Life model, and 15-inch steel wheels on the Club (alloys optional on Club).
The improvements to fuel consumption and emissions now bring the Corsa level with sub-100g/km versions of the Ford Fiesta, SEAT Ibiza and Peugeot 207, with other manufacturers likely to launch low-CO2 versions of small cars during 2010.
Pricing will be announced later in the year, although it's likely that prices will be higher than the current Corsa EcoFLEX, because of the power upgrade.