Test a Z4M Coupe, they're not to everyone's taste, but the OEM suspension set up is just about perfect IMO. It's spot on for our rough and bumpy roads and whilst it's not as "planted" as an Elise, it deals with our terrible roads very well. I'd wager that on an A-road run, you'd be hard pushed to call it "slower".
And you get the S54, one of the best mass market engines ever produced.
Really? I found the Z4M rather twitchy and difficult to get the power down.