High Quality Content by WIKIPEDIA articles! The Saab 9-4X is a mid-size crossover SUV introduced by Swedish automaker Saab Automobile at the LA Auto Show 2010. It is based on the all-wheel drive GM Theta Premium platform. The 9-4X will begin production in 2011 and is scheduled to be built at Ramos Arizpe, Mexico. The main challenge, according to Svante Kinell at the marketing department at Saab, is to find the right Diesel engines for the European market. As a result, the vehicle is V6-only.