I've had a search on the net, but not been able to find them.

Halfords have got some NGK BPR6E (no V) plugs and I was told the V at the end just meant that they a V groove....I suspect this is not quite right, but I am prepared to accept the 12 year old shop assistants advice if some of the wiser members on here concur....
Is this right ? If not, does anyone know where I can get some from...
Cheers...