For a newbie, a brand new Jap car (or used one) is a better choice than COEd B Class.
Not that the B Class is more problematic, but it is better you have basic knowledge to trouble-shoot when it broke down, and have set aside a sum for repair / replacement of parts, if you have set your mind on one.
The last time I owned a car under my name was 10 years ago though I've not stopped driving other cars (not registered in my name)
So am wondering if a COEd B class would a good drive considering its mechanics and the costs for sprucing its engine and the usual servicing. Would it even be with it ?