Back-in-the-day gassers were street driven (daily drivers) hot rods that would race on Sundays. They had head lights, tail lights, license plates, horn, mufflers, rear view mirror, two seats or a bench, and all that street legal stuff. NO convertibles as they had to have a top. The class was called: Gas Coupes & Sedans. Back in the mid-60's the class got a bit looser and the pros (SW&C, Big John, Ohio George, etc.) came in and up went the front axles, off went the mufflers, the license plates, etc. If you want to learn about gassers, read Gasser Wars by Larry Davis or Supercharged Gas Coupes by Don Montgomery. Don't just look at the pictures. Today the term "gasser" is used VERY loosely and a lot of people don't really know what a real gasser is.