CLS? E Class Coupé? A7? XJ?

Or wild card XK for 15k and spend some of the 10k change on extra motor tax to enjoy the V8?

I drove a couple of 640d (friends cars) including a really low mileage nearly new one and I was bored by the end of the drive. They’re pretty powerful, sound good, look good, can be economical, cheap to tax and can be very nicely specced yet there’s something missing! You just don’t love them or they don’t excite.