Opel has launched a more efficient version of its Astra in Germany, in the form of the 1.3 CDTI ecoFLEX with Start/Stop technology. This, combined with a raft of mechanical and aerodynamic improvements, will allow many European customers to profit from additional tax benefits.
In the efficiency stakes the Astra ecoFLEX now sips just 3.9 litres per 100km on the combined cycle, according to Opel's claims, and this equates to a CO2 emissions figure of 104g/km.
However, this Opel is still a tad heavier on the planet than the Volkswagen Golf BlueMotion that was recently released in South Africa, which sips 3.8 l/100km and emits 99g/km.
The Astra ecoFLEX is powered by the 1.3 CDTI turbodiesel engine that produces 70kW and 190Nm between 1750 and 3250rpm and is mated to a five-speed manual tranny. It uses a common rail, multiple fuel injection system working at a pressure of 1600 bar and a turbocharger with variable geometry.
It also receives a new E59 control unit, and its improved exhaust gas recirculation module is now water-cooled to help reducing emissions.
Aerodynamic efficiency is enhanced via an active aero shutter fitted to the front grille, which opens to allow air to pass the engine at low vehicle speeds and then automatically closes at higher speeds to smoothen the airflow at the front of the car.
This system is complemented by carefully-tuned underside aerodynamics. To optimize fuel economy, a 'shift-up' indicator is fitted in the main instrument cluster.
The Astra ecoFLEX is part of Opel's ecoFLEX diesel range of low CO2-emitting cars, which include the 94g/km Corsa 1.3 CDTI and the Insignia 2.0 CDTI with just 129g/km.