In 2012, Porsche teased the Panamera Sport Turismo concept at the Paris Motor Show. Since its reveal, test mules have been spotted in various locations, but none were more promising than the latest sighting at the Nürburgring. According to Autoblog, the sporty wagon was seen at the legendary track, which is known as a test bed for pre-production cars. While details are scarce, a new Panamera is expected to be shown in Paris this year as a 2017 model. The refreshed model is also rumored to be getting new iterations of the V6 and V8 engines, along with a plug-in hybrid variation. The high performance sedan will use a version of the MSB platform, which Porsche is currently developing. While we wait for the brand to officially weigh in on the shooting brake, these spy shots certainly add promise.