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Simon and Mark - writers for This is iQ (the official UK blog for the Toyota iQ) are attempting to visit 18 cities on one tank of fuel in their iQ. And to smash the official mpg stats for the car too. Here they are about to set off.
Follow their progress at Toyota UK's blog (blog.toyota.co.uk/tag/hypermiling)
and via our Twitter feed
(twitter.com/thisisiq)
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