918 Spyder into production. First unveiled at the Geneva Motor Show earlier this year, the car (in concept form, at least) packs a 500-horsepower V8 and a pair of 109-horsepower electric motors that should let you get about 78 miles per gallon, or a total of 16 miles of driving straight from the lithium-ion battery back. The cost? That hasn't been officially announced yet, but estimates peg it around the $650,000 mark. Don't worry, though -- it'll be eligible for the $7,500 federal tax credit. Head on past the break for the full (but brief) press release.