They're natural rivals, the Alfa Romeo 4C and Porsche Cayman S. The numbers tell one story, but the cars' driving characteristics tell another. What happens when you put the two together on road and racetrack? Let's find out.

This week on /CHRIS HARRIS ON CARS, Chris performs the inevitable comparo between the 4C and Cayman. Can the less-powerful, lighter Italian match up to the perennial favorite sports car among driving enthusiasts who've sampled it.

Which would you pick? Check out Chris's pick, and why.