[HandyAndy]

Just done a quick search and was surprised, that considering there's only one plug on the end, they cost roughly the same as untethered. ..

With VAT included it's £90. I thought it would be much cheaper.

That's only 3m long! Be very sure it'll reach your car, in all possible parking permutations, and what if you swap car for one with socket on the opposite side/end? I'd want the 8m one, myself...

Have you looked on evbitz.uk to see what's available there?