"Clive George" wrote in message
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"The Natural Philosopher" wrote in message
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Well I know that neither John'o'groats nor lands end are civilised, but
the places in between are. More or less. Also to do 600 miles in a day
requires a tad more speed than will give ypu that sort of fuel economy,
or illegally long driving hours.

It's only 10 hours at 60 average - easy on motorways, even including fuel
stops.

Fuel stops?
My 55l tank will do that distance at 60 mph without a stop.