You know how we said that 780bhp electric pipe dream Jaguar had last year wasn't going to be anything more than a concept? Well, we were wrong. Sort of. You see, the British automaker has just announced its intention to produce a limited run of 250 C-X75 supercars in partnership with Formula 1 team Williams, however the retail model will eschew the craziest aspect of the original design -- the twin turbine engines at the back. Those will be replaced with a four-cylinder, turbocharged petrol engine, which will aid the four electric motors (one attached to each wheel). Don't worry, though, this tweak has actually made the C-X75 accelerate even faster, as it's now rated to go from 0 to 60mph in under three seconds. 2013 is when the earliest production of this road-faring beast is expected to commence, with prices starting at £700,000 ($1.15 million), and there's even a glimmer of hope that a version with the gas turbines will also be built at some point dow...