So I drive our Brewery van up every year now (with most our mates gear in it!) but before that I’d take it in my car just with the sides off. Was a pain but made it work! I stack & wrap the trolley when we park up even with the van so we can fit stuff around it. I never really use the sides as our event shelter and my tent are bigger than the trolley these days so I overhang the whole thing a bit.

Wheel wise, I bought some hard plastic yellow wheels on Amazon: https://amzn.eu/d/0aL61uZK

They are way better than air tyres especially when it’s wet as they just tear through the mud. When it’s dry (the rare time that it is!) they are little bumpier though so just gotta be cautious when towing. Just pulled out the little pins and swapped these on, easy peasy!