Porsche concept, but we're not altogether capable of coherent expression at present. We want to own one of these so badly, we don't even care if it has an engine. And boy does the 918 Spyder have an engine. A 3.4-liter V8 petrol burner is combined with electric motors to put out 500bhp, while featuring the mind-altering acceleration to go from a standing start to 62mph in just 3.2 seconds. Topping out at 198mph and offering a very respectable 78mpg fuel economy, this is pretty much the stuff dreams are made, which is quite naturally why you shouldn't expect to see it in any purchasable form any time soon. If you do care to see more of it, however, you can do so at the Geneva Motor Show this year or just past the break, the choice is yours.