This game is great, it reminds me of a classic called SPYHUNTER which you should definitely look up and check out if you haven't heard of it! I loved how much effort you put into the art, music, and sound effects. The music is a little "discordant" -- meaning that it feels somewhat random and unharmonious, but it was interesting! I also think the idea of a summer road trip is perfect for the theme. You just need bathroom breaks, spilled sodas, and annoying siblings!~ haha
My only feedback is that the currency resets when replaying which means the only way to take advantage of the shop is to "be good at the game" the whole time you're playing. Much of the design of the "roguelite" genre is to assist the player by keeping some of the currency upon death so i can buy my way to victory! I also felt like if i weren't lucky enough to be in the lane where the coins were dropping, i was basically going to miss that pickup. Maybe you could award coins based on distance, and have bonus pickups the way you do now. The idea would be to make sure the player can survive long enough to take advantage of all the effort you put into the shop mechanics.
Great work overall, congratulations on submitting!