According to Porsche exec Matthias Muller, the Stuttgart carmaker wants to expand its model lineup even further after reaching its sales goals. The newly launched Macan SUV is just one example of Porsche's confidence, and a 5 Series fighter would also make sense. Other competitors in its field include the Mercedes E-Class, Jaguar XF and even the new Maserati Ghibli. This isn't the first time we've heard of a potential baby Panamera. However, now that Porsche is fully integrated into the VW Group, that smaller Porsche sedan is looking like a genuine possibility.