OPEL is claiming its heavily revised Insignia is now the greenest and most aerodynamic in its class – anywhere in the world.
It's doing so on the basis of the 2-litre diesel with 99g/km emissions and tweaks to the body that reduce its air resistance – and that means less power needed.
This so-called drag co-efficient is now under 0.25 for the hatch and 0.28 for the estate.
For example, they've extended the underbody covers and made the front spoiler lips wider to make the shape more 'slippery'.
The 2-litre diesel (2.0 CDTi ecoFLEX pumps 140bhp, has Start/Stop and, in this case, uses an active front air shutter on the grille. Usually air flows through the grille to cool the engine.
But that can involve 8pc of total 'drag'. This new shutter in the lower front grille automatically closes when not needed for letting air through and cuts the, yes, 'drag'. It also helps in cold starts and lets the engine warm-up more quickly. Thankfully, when the engine does need air for cooling, it opens automatically.
Add it all up and you get your 99g/km in saloon and hatch with their 6spd gearboxes. Claimed fuel consumption is 3.7litres/100 km.
In the cabin there is a re-designed centre console and instrument cluster.
An 8ins hi-res infotainment display is optional.
It gets you to radio stations, song titles, smartphone connection or 3D navigation.
Finally, the revised Insignia goes on sale later in the year.