As the sun comes up tomorrow morning, I’ll be setting off from Brighton to London as part of the second RAC Future Car Challenge.

The event is interesting because it pits electric, hybrid and low emission combustion engined cars against each other on real roads – everything from a free-flowing centre to winding country roads and then the choked traffic of our capital.

Adding a frisson of excitement (and justifying that future tag in the event’s name) some of the cars, including the electric VW Blu-e-motion Golf that I’ll be driving and the Murray 25 and 27, for example, aren’t even on sale yet.

VW Golf Blu-e-motion

Even better, after last year’s first run, when some manufacturers were reluctant to make their consumption figures available to the competitors, let alone the public, this year the majority of cars will have their economy measurements published.