Quote Originally Posted by Henry Rifle
I have been using Classic. Grundy appears to limit driving to organized shows, cruises, etc. Classic allows pleasure driving for whatever reason. They're a little more, but I think I have more freedom to drive where I want.
This is from Grundy's FAQ page:

8) How many miles can I drive my car each year?
Unlimited - The Grundy Family owns cars dating back to 1909, and recognizes that an attempt to monitor or audit mileage would be nearly impossible. In addition, the Grundy's personally drive thousands of miles a year in organized touring events and simply enjoying and maintaining their cars. You can too!

AND..................

No Mileage Limitations
This policy authorizes unlimited hobby use of your collector vehicle in collector activities, exhibits and parades. While participating in these events, owners are free to enjoy their collector vehicle without monitoring the odometer