This version of Sideswipe was originally designed as a prototype for a Generation 2 toy that was planned some time in 1995 but went unproduced. The design would finally get put to use in the recent Legacy line, which also included several other previously unmade G2 prototype designs.

T-A-C said:

This version of Sideswipe was originally designed as a prototype for a Generation 2 toy that was planned some time in 1995 but went unproduced. The design would finally get put to use in the recent Legacy line, which also included several other previously unmade G2 prototype designs.

Ugh.... Sideswipe should be RED.