You’ll know how important it is that pseudo-sporting models sound the part, right? You turn the key and are rewarded with an aggressive growl that hints at the potential.
Hmm. If you’re looking for that, the Insignia GSi diesel is not the car for you.
The Insignia GSi’s diesel engine is one you’ll find in the Elite Nav and Country Tourer models and it sounds as underwhelming here as it does in those applications.
There’s a top-endy kind of rattle that you won’t find in premium-badged alternatives, a lack of refinement that manifests itself as a constant backdrop to your driving, unless you’re at a barely open throttle motorway cruising speed, when (reasonable) road and (moderate) wind noise and the low revs afforded by the eight-speed auto render it inaudible.
At no point, anyway, does it sound powerful. It isn’t, either. Its 207bhp is not the sort of power output that would have you writing letters home, although its 354lb ft, which is developed from only 1500rpm, gives the GSi real-world acceleration of the useful kind.
The 0-60mph time of 8.4sec is no better than respectable (and comes with no scrabble, thanks to the GKN four-wheel-drive system) but the fact that it’ll mooch from 50mph to 70mph in 4.7sec on kickdown makes better reading.