[StarMan]

Personally, I think the M340i looks fantastic (despite its "Lexusy' rear end) especially with some M-Performance Carbon Fiber bits. The interior and its technology is a massive upgrade to the M2 as well. While it may not handle like a M2, it's quite quick. The M340i will have lighter steering since its made for comfort and your rear passenger will appreciate the little extra room and rear door convenience. As others have stated though, M2 will have better resale value.

The M340i may make more sense per your location, but honestly, your best option is to test drive the two and see which one you like better.