[QUOTE=StephenH;8346922
Schwinn made a reverse trike where both front wheels steered with a linkage. The idea was pretty simple, see if you can hunt up photos of it.[/QUOTE]
Schwinn 1989 tadpole trike; only 1 concept made. I bought it after Schwinn went bankrupt or they might have destroyed it. Still had all 4 Schwinn name-tags.