Weltenbummler, the 1984 pré series T3 syncro

There were several prototypes before the syncro was launched. This e.g. is a famous one since it hasn't got the typical syncro fuel fillr cap yet :

Another prototype, nicknamed the "weltenbummler" was developped to show at the dealers worldwide when the syncro was launched. Here's an article on it the Weltenbummler (meaning globetrotter)