What is it?
The 1.8-litre family car isn’t dead yet, but the prognosis doesn’t look good. Pressure to improve economy and the CO2 being pumped out means that downsizing is the new mantra.
GM is proving the point with this 1.4-litre turbocharged Astra. Although still a prototype engine, it is highly likely to be replacing the current 1.8-litre next year. So you can expect it to be a mainstay in the 2008’s all-new Vectra too.
What's it like?
The figures seem to add up. With assistance from a blower the 1.4-litre is good for 140bhp, compared to 120bhp from the current 1.8.
Torque is the trump card however: 170lb ft, optimised all the way from 1500 to 4300rpm plays just 125lb ft. And while economy figures aren’t finalised, engineers are also expecting 10 per cent improvements in economy and CO2.
On the move that hefty slug of torque gives you diesel-like shove from low down the rev range. But unlike a TD it doesn’t run out of steam when you extend it.