This is the supercar that won't be made by Jaguar - the C-X75. A production run was cancelled, although Jaguar will sell the prototypes.
The technology was just too advanced, mainly to satisfy emissions regulations. Jaguar say they will learn lessons from the C-X75 and use it for their future road cars.
For all the whacky supercars we've seen this year the C-X75 elegantly eclipses the lot of them as an object of beauty. It'll probably never happen but it would be lovely to see a more conventionally powered C-X75 on our roads at some point in the future. After all, Jaguar do have that superb 5 litre supercharged V8 already, and used in every model they produce.