90s toy truck trailer that opened up and had a rocket or crane inside

[pickles4uk]

A memory from my childhood popped into my head today. It's very fuzzy, but I remember a box type trailer for a truck probably matchbox car size and it opened up. The roof tilted up vertically and the sides folded down flat and then there was some kind of thing inside perhaps a rocket or a crane or something. I can't remember if it was a matchbox brand, but can't think what else it could have been. anyone have any idea what I'm going on about?

[pickles4uk]

I think it was part of this set, but I don't think this is the one I had. I can't seem to find any images of others. Does anyone else have pictures of other vehicles from this set?

[davidthomas27]

Here are some more Connectables toys: