c class coupe on a budget?

[dema]

Is it a good idea? I've always like this car, although never had the chance to drive it.
I know that rust can be an issue and being a Merc, parts and services might not be as affordable as other brands.
Apart form service history is there anything I should be worried about?
I was thinking of something like thishttp://www.autotrader.co.uk/classified/advert/201310119237081/sort/default/usedcars/transmission/manual/fuel-type/diesel/body-type/coupe/model/c_class/make/mercedes-benz/onesearchad/used/onesearchad/nearlynew/onesearchad/new/page/1/radius/1500/postcode/hp66au?logcode=p