On the left side of the altbierbuden homepage you will find
“Reporter => Racing Circus”
If you then click on "update" without any further settings, you can view all route layouts in alphabetical order.
It should then look like this:
Or on the left side of the altbierbuden homepage
"Reporter => Best Laps"
Enter a vehicle, activate "one laptime per car" and click on "update".
The routes for the selected vehicle will now be displayed according to the lap time.
Example with the Alfa Romeo Junior GTA
EDIT:If no time was driven on a track with the selected vehicle, this track will not be listed
Just click through and take a look.