Well, the cars that are above group 14-20, tend to be owned by people 21+ and 25+. Some insurance companies may insure you at 21, but most will insure you at 25. No insurance companires will insure you on a group 20 car, not even if you have millions. (the best way is to talk to the dealer of the car, i.e. if it's a Lotus, then talk to the dealership that sells lotus cars as they can get special insurance)
Hope that helps.






