When Sarah had the hot orange convertible it was quite simply the worst car we have ever had. Close 2nd is my R56 S mind you but I would say defo keep the S.
If it was an S sidewalk then I would be tempted to change.
I would wait till the R56 convertable is avilable
2008 R56 COOPER S, Pepper White, Black Roof, 'John Cooper' Signature Side and Bonnet Stripes, JCW 'Stage 1' Tuning Kit, Forge Intercooler, Milltek Downpipe & Sports Cat, ALTA Induction, Chris Knox/DNA Remap, JCW/Brembo Brakes, Limited Slip Diff, JCW Suspension and Front Strut Brace, 17" Crown Spokes with Non-Runflat 205/45x17 Michelin Pilot Super Sport tyres, JCW/Recaro leather Seats, JCW Sideskirts, Chili Pack, Front Spotlights. Still got my old Hendrix Badge blu-tacked to the dash!
i know, we have decided against it. The weather means the top would be down about twice a year and we missed one of those days yesterday