Opel's low-emission EcoFlex family of cars now includes 33 members, from the Agila to the Zafira. The latest model is the Astra EcoFlex, which has a 1.3 CDTI diesel motor that the carmaker claims burns just 4.1 liters of fuel per 100 kilometers on the road.Along with a series particle filter, the new Astra has a five-gear transmission that is optimized for efficiency. drive it! put the economical little Astra through its paces.
