Norton can probably answer these, and they have been bugging me for quite some time now. I know a lot about cars, but cannot figure out: 1. What is a dry-sump oil delivery system? 2. What is the difference between Roots-type superchargers and Lysholm-type? Which is better? 3. What are the different differential types? (For 4WD and RWD cars) 4. What constitutes "AWD" as opposed to "4WD"? Are they simply interchangeable? 5. Why the hell does everyone buy front-drive Civics, Integras, Preludes, etc., and think that they are sports cars? Are front-drivers really viable for speed? Or does torque-steer and strange transitional behavior make them pretenders? Thanks.