Ye your completely right Original Guvnor, but they are designed as the everyday fast car so doing that kind of milage is possible as there are a few on the market with high milage. But like you say a lot of people including most on here do use them as weekend toys or second cars keeping the milage to around 6k.
With the warranty every car is different, but if your car has been looked after strictly by BMW there will be no issue. But the warranty changes as milage piles on, will be looking at 600-800PA depending on age/milage.
Good thing atm is that BMW are offering 2 year warranties on all M cars (with a push they don't advertise this on every example) I have written this on many threads but I will tell you my experience.
I paid the BMW premium for my car which was around £1500 over private sale but managed to haggle a £500 discount. The car was about ready for Insp II, tyres all round & brake pads. They did all of this for free with the inspection II costing around £900, full set of Mich Pilots which are around £1100 and pads say £150. Also got a 2 year warranty by pushing say thats worth £800 a year £1600. The wheels also needed a full refurb and they did this too an Extra £400. Obviously these are all costs I would have had to swallow myself if I had bought the car privately and some of these reasons are why people sell their cars privately then the money you save buying privately can quickly mount back up and more than BMW prices. It also didnt cost BMW this amount to do but it would have cost me that much so was worth it in my example.
The car also had a few issue in the first 3 months which were all sorted under warranty at a cost of £1500 in parts before labour. The warranty pays for itself but it is obviously a gamble. But say I paid £16k private for my car (which is probably what the car was worth private) these costs (£4150 for above + £1500 warranty work) after sale would have mounted to £21,650.
There are a lot of hidden costs in private sale so extra care is needed. Small things can cost a lot and the M tax adds to this. Obviously as a car hunter and fourumite you will know what to look for and the £16k private sale price in my case would have been haggled down to free costs of maintenance. But at the end of the day I didn't have to worry because it was all done for me before the car was picked up. The warranty work I had done wasn't bad either had a problem with one of the windows and that escalated by the replacement of a few components. Since then completely trouble free.
So all in all depends what your budget is and there are some awesome cars out there privately just make sure they are ready to drive away and be fine so there aren't big costs to pay in 3-6 months time. Hope this helps
