In a massively slippery sports car or similar where drag is a big issue, maybe
in your common or garden Octavia, you'd have to be talking about motorway speeds, and if was anything boxy like a van, it wouldn't make a difference at all.
( Grrrmachine the indifference engine, Thu 11 Jun 2009, 19:00, archived)

So not illegal speeds at all, then.

( Druid, Thu 11 Jun 2009, 19:02, archived)

next time you're on a motorway
I DARE you to stick to 69mph.
( Grrrmachine the indifference engine, Thu 11 Jun 2009, 19:09, archived)

What's wrong with 70?

( Dave Trouser ; the people's choice - 75% agree, Thu 11 Jun 2009, 19:09, archived)