You don't say what wheel rim options your Roadster has Don but if they are 16 inch you have greater tyre choice. I recently fitted a set of 205/55/R16 Continental Premium Contact 7 tyres to my 3.7 Roadster independently rated currently as one of the best in class for wet and dry grip. Not surprisingly very pleased with the results being no comparison to the now outdated Avon ZV7 fitted as OE which hardened so much in six years I was getting wheel spin in a straight line at the slightest sign of road dampness.
Comparison with latest Michelin Primacy 4+
here.
