Will my running costs increase if I trade in my 1.6-litre Volvo C30 for a 2-litre version?

I currently own a 2009 Volvo C30 Drive SE Sport 1.6-litre diesel on a three year plan with 9000 miles per annum, which finishes soon. I am considering replacing it with a new C30 SE Lux which has a 2-litre petrol engine with 17-inch wheels and a number of useful extras. I realise that fuel economy will not be as good and that road tax will be £215 a year, however I will be getting an uprated car with a 20 per cent discount and a good monthly finance saving. I would appreciate your comments.

Asked on 6 September 2012 by AP, Bristol

Answered by Honest John
The running costs of the 2.0-litre petrol against the 1.6-litre diesel will be about £840 more a year. But you should also consider a Volkswagen Scirocco, a Renault Megane Coupe, a Vauxhall Astra GTC and a Hyundai Veloster: www.honestjohn.co.uk/road-tests/hyundai/hyundai-ve.../
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