Not quite sure I follow. Are you suggesting the Audi guy is underqualified to work at KSR, or overqualified to work at KSR (IE - Kevin's pulling some strings to get this guy working for him...)?
If it's the latter, I've known other engineers who simply want to get away from the big-company red tape and let their creative juices flow without all the bs. It's also possible that the Audi guy sees this job as an opportunity to get a foot into the group of shops that surround Cleetus and other big youtubers.