What is it?
A coolbox.

How cool?
Well it keeps cooler than most for longer because this is a thermoelectric coolbox which plugs into the cigarette lighter in your car (or the mains at home with an adaptor). This powers a cooling and heating unit.

So it is not just cool?
It can keep things warmer for longer as well - but not at the same time.

What's the point?
Just think of those long, hot summer car journeys where a cool drink would stop you throttling the kids - or them from starting the third world war in the back. And think of those picnics where, by the time you get there, the salad has wilted. And using it for warm things could transform bringing home the take-away.

What happens when you stop the car? Will it drain the battery?
The people at Campingaz have thought of that. It has a battery cut-off feature.

How big is it?
This one has a 28-litre capacity - about that of a good day rucksack - and there is a 36-litre one.

What about all the electric bits - won't that be a bit awkward at the picnic end?
You take the thermoelectric lid off and replace it with a lightweight one for easy carrying.

What's the damage?
It costs £69.99 and is available from Blacks and camping/outdoor shops nationwide.