E63 AMG... some advice appreciated

[crazy about cars]

Never owned a Merc before and always tempted to own one. I had a few interesting cars in the past and very tempted to look for something bigger than my current 13 plate M135i.
Besides being slightly bigger it also has to be relatively low maintenance, reliable and most importantly within budget (circa 25k).

My ideal choice would've been C7 RS6 Avant but that's definitely way above budget. I've also looked at F10 M5s but then again they are above budget.

I've stumbled across this very lovely 10 plate 1 owner E63 AMG. It would've been perfect if it's the estate version with lower miles and privacy glass but so far this is the best example I can find within budget and reasonable distance.

The thing is I know next to nothing about performance Mercs except for the lovely noise. The car would have to be reliable (I do 50 miles/day commute) and low maintenance (no 6000 miles service schedule like the M3...)

Any advice greatly appreciated.

[ZX10R NIN]

If you want a low mileage E63 estate then don't be afraid to look at the W211 model:

http://www.autotrader.co.uk/classified/advert/2016...

Or a super low mileage saloon:

http://www.autotrader.co.uk/classified/advert/2016...