Looking for coolbox recommendations

[HurdyGurdy19]

We had a plug in one that fitted nicely in the car, but that has broken now, and needs to be replaced.

I'm looked at the Ninja ones, but they seem to be mostly for keeping drinks cold, rather than food (and they are ruinously expensive), so we are looking for alternatives.

Needs to be big enough to hold food and some drinks for 4 people, and not to be too heavy (unlike the Ninja, which, looking at some YouTube reviews, would be a good competition entry for The World's Strongest Man!)

Any suggestions?

I bought a polar box, the bigger one. It’s nice looking and so far it seems to work for keeping things cold.

Oh it’s not plug in sorry just cold blocks etc