Prototype --
The Proto or conventional types were styled to resemble the full size
midgets of the day. Typically, they had an open cockpit.
Streamliner
-- The Streamliners designs varied,
but used an enclosed
cabin or teardrop shape. These cars were the fastest.
Class B
-- These are the larger size cars with .60 CID engines and length
typically 15 - 22” (usually approx. 17”) and weighing 6 - 8 pounds
Class A
-- Also known as mite cars usually range from 9 - 14” in length and
use .36 or less CID engines.