Erik made the mistake of never saying that he *didn't* have a license. As amusing as it is to imagine him failing the driver's test because he tried to run down Raoul, I can also picture him up to his elbows in grease and oil while taking apart a combustion engine. I also see him being able to drive all sorts of unusual vehicles, just because he picked up the knowledge *somewhere* on his travels.
(Because we all just need the image of him mushing a dogsled or on a hot air balloon...)
Erik belongs to Leroux and Webber.
Jareth belongs to Henson, Lucas, and Bowie.
Norrington belongs to Disney, Bruckheimer, and Davenport.
Javert belongs to Hugo, Boublil, Schonberg, and Kretzmer.
Oz and associated material belongs to Baum, Arlen, and Harburg.