I reckon so or an alpine D3 or a 335d
That's what I'm fancying as well.
A 320d to 335d M Sport Coupe floats my boat at the moment. I wouldn't buy a new one though (there are plently of decent spec'd ones on the market with less than 20k miles for under £25,000.
I would miss the RNS510 unit in the golf. I love the HDD storage of music on mine. Not sure if bimmers have this facility?