I was practicing extreme optimization and came up with this cart
There's not a lot to see here but what matters is that it works
Edit:The original took up 182 characters, this new version takes up only 176 characters
Edit2:Thanks to @p01, the new version takes up 133 characters. Unfortunately, not all the techniques
could be implemented without problems as racer 5 was the only one that could win in your code
Edit3:I was able to make the cart smaller by 3 characters which is not that bad