I've never had a standard Z4 but I did run an E46 330 Sport followed my an E46 M3. MPG was marginal, maybe 2-3MPG. On a long run my M3 used to do 29MPG on a motorway, the 330 about 32MPG (for direct comparison). M oil services are cheap, but the Inspections hurt and are 2-3 times more than the none M - more than a 911 actually which has 20k interval fixed price servicing. My Insp 1 was £600 (some dealers wanted up to £950) and Insp 2 £700-£1200 (I think). Never needed to do them but I do know the front discs on a 330 are £120 a pair, mainly because parts departments often quote this price (incorrectly) for the M3. One even told me they use the same discs. Er, no. Those are £300 a pair. Not many Z4Ms are going to need new discs yet though (50k miles maybe?).
The M is definitely more expensive to run, but it depends on where in the cycle you own it as to how 'bad'...i.e. Like the M3, if you buy one with new tyres that's just had an Inspection, you've got 30k of motoring with one cheap oil service in the middle (and probably a set of rear tyres) before you have a costly Inspection again. And even then, if you're prepared for it it's not the end of the world.
Gids said:
Why though its a road tax, we use the same roads. It's just another bullshit tax from our government
It's supposed to be a disincentive to us for driving more 'polluting' cars...ours put out twice the emissions of a Ford Fiesta but cost four times the tax. Of course the powers that be wouldn't want you to actually
stop driving your 'polluting' car - if they did, it would be £5000 per year. That would be counter productive, because then the penalty would work. No, much better to make it a large enough amount to piss you off, but not make you change your car. That way they increase revenue and are seen to be 'doing something green', despite the futility of the whole concept; a 747 puts out something like 3 times the emissions your car puts out in a year - every single day. A container-ship puts out something like 100 times that.
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