2021 Porsche Panamera Sport Turismo spy shots

Porsche's second-generation Panamera is set to come in for a subtle facelift as it reaches the midway point in its life cycle, as evidenced by camouflaged prototypes spotted in the wild. The latest prototype is for the Panamera's Sport Turismo wagon body style. Earlier testers showed the regular liftback sedan. The current Panamera arrived in 2016...