Is there any set that contains both of these? And how to find it? If there is none, sets that contains only one or the other would be appreciated.
Additional criteria for the "goodness" of answer:
- Generic train, Technic or Powered Up parts, as I'd be buying it for the parts, not the model.
- Low price, or low price per brick (prices may change but relation between prices seems roughly constant for sets in production)
- Set is available now, as of middle of 2021, to buy new from The LEGO Group