Looking for a replacement to the MCS - requirements are as follows:

1) Must sound nice so I think must be petrol and must be 6 cyl
2) Must be as fast or faster
3) Must be in the €750 range for car tax
4) Must be a few years newer
5) Must be bigger - need a bit more leg and boot space for the kids
6) Ideally cannot have higher mileage than the MCS currently has
7) Ideally coupe or cab

I've been looking in the UK as 6 cyl petrol cars in my budget are few and far between on these shores.

Last week found a 2014 428i in the UK at what seemed like very good money, lined up the RAC to look at it but subsequently found out it was Cat S

Today came across a 2009 E93 330i at decent money and the VRT is small so considering having RAC check it out but as I've never driven one I'm looking for feedback - can definitely sound good with a decent exhaust and I've always wanted a cab and I've read they are pretty quick but at the end of the day I've still never driven one.