Spy shots of the Porsche 918 Spyder continue to get us hyped about the forthcoming hybrid supercar.These photographs were captured in the Martini Racing livery, and are further proof that while Porsche wants to keep this ride under wraps to a degree, the secret certainly isn't hermetically sealed.

Expensive, fast, and a pet project for Porsche R&D chief Wolfgang Dürheimer, this car is all about pushing new technologies (as we've noted before). Price is estimated at $850,000. [Car & Driver]