Tuftie,
I am in the "Go for a Roadster camp", I had a 4/4 Sport and the Roadster I bought offered me firstly great overtaking, the 3l is blistering and there is no hanging about waiting for the perfect moment, then hoping a 1.6 Sigma decides to get going. The easy up roof, with it's access to the rear area behind the seats and the time saving when the rain came. A spare wheel, none available on the 4/4 sport, not only for a flat but also made the back end of the car look more resistant to a rear end shunt. Hope this helps