Redline wheels. Clear windshield, metal engine, shorter spring box or trunk, interior available in assorted colors with molded dashboard and steering wheel.
There are 4 distinct side pipe variations among US Hot Heaps. The parts are internally labeled with a letter: (A,B, C or D) to reflect the revision level. The point where the exhaust pipes leave the base shows the pronounced variation with increasing levels of curvature being evident. The A and B variants are essentially straight pipes. The D variant shows the most curvature where the C variant is intermediate between the two. The production run of the C variant was apparently the shortest run as they are the most difficult to find. - Online Redline Guide