First one should be interesting for south german and austrian classic car owners...

Krombacher 6. Krenovicka Jizda Website (multilanguage incl. online registration)
 

Second one is more the family event and due to main prize for absolute winner which will be announced soon, all F1 lovers should pay attention and follow the event for news :)

Krombacher Veterani na Plazi Website (multilanguage incl. online registration)