Complex sentence: The immediately-preceding Saab production code was for an aeroplane-the Saab 91 Safir-for this reason, the first car project started as the Saab 92 (92001).
Split into simpler sentences: The immediately-preceding Saab production code was for an aeroplane-the Saab 91 Safir. It was for this reason that the first car project was called the Saab 92 (92001).