Comprehensive, if somewhat lengthy, feature on supercharged cars of the '20s and '30s. I must confess that I have only seen part of the coverage, but what I did see I found quite enlightening. Regards Styria (you will need a bit of time). Regards Styria
http://www.youtube.com/watch?v=NCP_GJ8JBOE
http://www.youtube.com/watch?v=NCP_GJ8JBOE