I'd be a bit cautious with a car with that amount of mileage. I know BMWs fair well over the years but I couldn't do it. I used to own a 318iS and it was never trouble. The power was okay (140bhp) but I always wanted more. I couldn't afford the insurance on anything bigger than the 1.9 engine so my decision was made for me.
The 6's take the mileage a bit better than the 4's. I bet you could get one with a lot less mileage for a similar price.
<span style='color:blue'>"So my BM makes me a flash bastard? Then I guess you're just keeping it real from the seat of your nova?"</span>
<span style='color:gray'>"...and the home of the brave..... is bravey 130bhp from a 7 litre engine? 100bhp/litre or don't bother building it!"</span>
<span style='color:red'>"Aaahh the UK; where every road is jammed, under construction, poorly maintained and unfairly policed, at least we don't get over-taxed for it........ HA HA HA!"</span>