Porsche can't be too happy about its 911 Turbo getting trounced so thoroughly by something as plebian as the new Nissan GT-R, so its engineers have focused their frustration into... new taillights.

Auto Express has several spy shots of an all but completely undisguised test mule undergoing cold-weather trials in the frozen north. The photos of the updated twin-turbo prototype don't reveal much beyond some mild cosmetic changes, but there are also rumored to be some mild mechanical changes in the works, as well. Sources suggest the revised 911 Turbo will bow in Paris this coming October.

[Source: Auto Express]