Any real as to why you want to go for an 8P3 170? They hold a huge premium on a now old platform. Think you would be missing the power of the petrol personally!
The 8P arm rest is a real joke and a complete after thought! I like having one but I've adjusted and it's easy enough to use eventually!
They are in budget, an 8V1 isn't, unless I do finance, I don't like owing people anything
The only other car that really appeals to me is a 330ci E46 but it would have to be really low mileage, grey, red interior, can't find any suitable. Running cost isn't great either.