Quote Originally Posted by DoktorB
Neither!

Z4 M Coupe all day long.

What driver aids did the 1M exactly lack????
AFAIK it had all of them apart from having to change gear yourself.

However to answer the actual question, I would pick the 1M as its a much better looking car than the E46 even with the CSL upgrades, in my opinion.
The Z4M wasn't on the list

You are quite correct though, the 1M did not lack any driver aids, I have removed that bit.

For me it is a very very close call as I love both cars which is why I put up the poll. If push came to shove, I would have to go with the CSL for no other reason than it just feels a little more special.