I have the earlier Vectra C 1.8 with 122 BHP. At legal speeds on the motorway you can barely hear the engine - it's mainly road/wind noise that you hear. It's one of the quietest cars I've ever been in. My average fuel consumption is 36 MPG.
The 1.8 engine is great around town and cruising on the motorway. With such a big heavy car it does not accelerate quickly unless pushed hard but if your driving style is focused on getting there smoothly rather than sportily it's a good engine.
I imagine that the 1.8 VVTI with an extra 18 HP will accellerate a little more quickly but most variable valve engines like high revs so I doubt that there will be much more low end 'grunt'
Edited by adsk on 28/10/2007 at 21:04
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