3 ms·The Tesla Model S is 77" (196 cm), and the Mercedes S-Class is 75" (190 cm).by swimfar 6y agoThe Tesla Model S is 77" (196 cm), and the Mercedes S-Class is 75" (190 cm).mhh__ 6y agoit wasn't a model S, and I don't mean the width I mean the amount of junk in the trunk(volume) the thing had.iso947 6y agoMercedes S class is 510l boot. A Tesla model 3 is 425. Also smaller than an Audi A4 or BMW 3 series.