The Porsche Panamera has been caught testing in Stuttgart and on the 'Ring for some time, and now you can add the Arctic Circle to the list. The forthcoming sedan is undergoing cold weather testing in one of the world's most most inhospitable places in an effort to ensure the family man's Porsche's engine will still purr even on your worst winter morning. The car's appearance looks essentially the same as it has prior spy shots, which is to say that it's still ugly, yet it's still A Porsche. With possible plans for a diesel, hybrid, V6, V8, and turbo V8 model on the table, the German automaker will likely be hanging out with Santa and Frosty for quite a while. Hit the jump to see the V8-powered Panamera as it traverses the white stuff.

Gallery: Porsche Panamera - spy shots