The 918 Spyder counters with a 2.8-second ... is proving that Porsche is leading the field with its expertise in the development of fuel-efficient drive concepts for sports cars.

So, the 918 dream-maker doesn't list and prices as yet, and that's too bad. But considering the car is due to start off at $845,000 in the US, chances are good that unless you're reading this from ...

Founded in 1931 by Ferdinand Porsche, the brand is most famous for the 911 line of sports cars ... 0-60 mph in just 2.6 seconds, Porsche planned a more extreme variant of the 918.