Ok, i played it a few times and i wanted to say that i reallllly liked it!! It felt so cozy and sweet. I loved the art! I loved the Music! Honestly great!!
That being said, i did notice a few interesting quirks and i wrote them down while i played:
1) i really like your custom godot entrance screen, that was extra work that most people wouldnt have put in to do but it makes your game way more immersive:3
2) the music is so funky fresh :00000
3) I really like the text erasing and appearing animation with the lines at the start
4) wish there was a way to know if i was in erase mode or not, also to know the angle of rotation that i was on (like a preview projection onto the tilemap perhaps
5) I like the different speeds of tracks :3 very cool idea
6) it might be a good idea to implement some... path conserving mechanic. as it is now, there is no reason for me to use any block other than 80 mph blocks and i can make as dumb of tracks as i want, a cost or something might solve that :3
7) also sometimes (pretty much only on the two depot levels), when on the 80mphs road, only one of the cars will go fast?
8) also... one of the times... i just pressed start twice and it let me win? I tried this again on other levels and it looks like only one of the cars needs to make it for you to win, you just have to re-press start when the one gets there. This, in combination with the 80mph tiles makes it really easy to beat the final levels
9) also i couldnt figure out what switching cars did, when i tried it it didnt let the cars go, so i just played the game using only the car 1 selected and it worked
Honestly a really good game, with just a little bit of work, maybe a couple more mechanics, this game would be one i would play for hours :3