Hi Richard...I absolutely love my XF for many reasons, however if this is the only mileage you are likely to be clocking up then buy something else. The DPF will be a problem to you especially if like mine its the 3 litre (which incidentally accelerates like you would not believe for a car of its size). These cars are really built for the high road not the low road although a mixture of the 2 is fine. As regards unreliability I have had no issues whatsoever in 25 months other than the DPF which requires you to travel at a constant 70mph for about 20 miles which then clears out the filter. (Do not thrash it as some folk seem to advise). Just one other thing don't expect good mpg figures if your town or short run driving...(28 mpg max. and less in winter) Hope this helps.....Mick