They were never sold over here - all we have is imports, either Japanese or direct from the USA. Current models became available from the local Ford dealer about 2 years ago, but they've put the steering wheel on our side, which is just wrong - it's an American car so should be on the left!!!
V8s are common - Jaguar / Mercedes / BMW (used to have a Mercedes SL500 V8 before the Mustang) but, yes, gas price is a rip-off, ranging from £1.24 to £1.50 a litre depending where you go.
V6 is common (my daily driver Jag X-Type is one) but again gluggy and high fuel consumption.
But hybrid / electric - Never!!!
Regards
TMW