There are a lot of people who got their licences revoked while driving E39 M5s too. And probably M3s as well...
Anyway, the M3 and M5 are quite different cars, the M5 is much more comfortable while performance is very good on both cars. When you push it, the M5 feels like a much smaller car in handling. I think you would enjoy it.
If you drive your M3 to any car dealer with an M5 in the showroom and say: "I´m thinking of trading my M3 for an E39 M5, can I have a look at the one you have for sale, please", they will definitely let you drive it. Even better, call in advance and set up an appointment.
David
Anyway, the M3 and M5 are quite different cars, the M5 is much more comfortable while performance is very good on both cars. When you push it, the M5 feels like a much smaller car in handling. I think you would enjoy it.
If you drive your M3 to any car dealer with an M5 in the showroom and say: "I´m thinking of trading my M3 for an E39 M5, can I have a look at the one you have for sale, please", they will definitely let you drive it. Even better, call in advance and set up an appointment.
David