Quote:
Originally Posted by ianfp
Going from my 3 Litre petrol to my diesel X3, I have halved my fuel bill, insurance and road tax. I also hope that the depreciation on my more economical car will be less than my 3.0 M sport.
You are absolutely right though - any savings on running costs are far outweighed by the cost of the car and the depreciation that it will inevitably see.
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Again, this is how we all compare it, I look at my old petrols, 528i, 530i, 330i, M3, S4 and jump into a 'modern' diesel like the X3 and see it doing almost twice as much. However, I think someone who had been driving a 2008 330i with the direct injection engine who went into the 2008 335 would have a bit of a shock.
There would be around 4-5mpg difference at best with the diesel, not what you would expect.