Been done, you know.... late 70s Plymouth Champ / Dodge Colt / Mitsubishi:
Originally Posted By: supton
[quote=JHZR2] Anyhow... I too have wondered about adding a high/low range, sorta like in 4x4 trucks. My guess is the ~5% loss every time you go through a gear set is an issue. Actually I read once that close gear ratio planetaries lose quite a bit, not sure what close is though.