That 4143 tractor is an interesting set, containing both the newer realistic wood/silver tools and some older, frankly silly pale blue tools. I wonder why they mixed them?

The open-top tractor died out, at least in Wiltshire UK, some years ago, maybe it was too small or too noisy for my Great Uncle's farm. I've seen several here in the US very similar to this, and with much thinner wheels than we see in the UK, suggesting very hard dry ground.
I like the 3315 Knight, but he'sa loner at the moment in my collection. If they do a set of footsoldiers to accompany him, then he'd have a better entourage.