For those who are not petrolheads (quite the wrong word in this context), the car in question is one of perhaps 250** UK purchases of this cutting edge electric car. The Scotsman motoring section tells me this one cost £90,000 and was imported direct from the USA. A bit of googling suggest that it would be the US taxpayer who paid the several tens of thousands of subsidy which goes towards each car. Phew.
If you are looking out for it, the Blackford one is pearl white.
**6.11.14 Amended number after the owner corrected my original figure