BMW Z4

Still not as great as a Porsche Boxster, but getting closer with every generation. New folding hard-top gives it the predictabilly slightly fat arse, but otherwise it looks as good as any other hard-top.

• Comfort

  The ride quality is far better than it was on the old car, but then that was the general idea from BMW. They wanted this one to be less hardcore. So the optional electronically controlled dampers do a better job of keeping the run flats in order. Plus, of course, the hard roof helps with noise insulation.

  

• Performance

  There are three engines to choose from and all of them are straight sixes. The new 35is with twin turbo technology is the highlight though - the 4.8 seconds 0-62mph time is about all you could want for. The other engines are a 2.5-litre and 3.0-litre.

  

• Cool

  Arguably less cool than the last fixed head version, but it'll still sell by the bucket-load. 

  

• Quality

  Getting better all the time after the disastrous X3, but this latest BMW still can't match the materials Audi uses.

  

• Handling

  Unlike the last version, the handling on this one is more fun, mainly thanks to a better steering system that's more precise. It's still not as clinical as a Boxster, but rear end grip is simply astonishing.

  

• Practicality

  It's a folding hard-top - how big can the boot be? You can at least get a Comfort Access option, so if the roof is folded it will lift up slightly so you can slide stuff underneath into the boot.  

  

• Running costs

  Since when did straight six engines becomes cheap to run? Not here for sure. Fuel economy in them isn't cracking and you certainly won't want a company car scheme on them.