Not the last time I was there in 05, I highly doubt that is the case since there are several services in the town of Nurburg that will rent you a race car for an hour or two.. and the logistical nightmare of checking papers on everyone at the gates would make that unlikely. Remember it's not America, They don't care about 1,000,000 little things. Heck I'm going to bet about 1/2 of the canteens at german factories still sell beer. While it's Strictly Verbooten To be "Drunk" and working or operating a car.. most laws are more lax.