Sorry if the idea has been presented before in this post or others, but I want to add to the vehicles suggestion. I think there should be a vehicle that will aid in hauling, as in more than 1 item. Another vehicle could help with mining a larger area, or faster, while also helping with lighting while in caves. It's dark in there, and I like things to be lit up. There could also be a vehicle(s) that could help with farming. With only 1 or 2 colonists, potatoes cannot be produced and harvested very quickly, and vehicles like tractors and harvesters would be great. I'm sure vehicles could have a lot of variety in their purpose if implemented.