I work at a tuning company in Hungary. We have a project in which we build a BMW Z3 with 1800 ccm on a 1.8 liter with turbocharger. The modifications to range engine are finished and are built in. We thought that the power transmission will be better and reinforced we have found an accident Z3 M coupe from which we would buy the gearbox and cardan shaft un lock differential. So my question would be if these parts of the 3.2 liter Z3 M coupe in our 1.8 lite r turbo convertible would fit? Or who you don’t fit dan what solutions are there? We’ve also heard about a six-speed transmission for Z3 that’s true or are the wrong information?