Thanks for the comment ^^
I like the idea of giving full boost for flowers.
Yeah I thinkthe flower currently not giving enough unless going back and forth which is kinda not a good experience to feel for driving game :"D
I also agree on the viewport part. I actually kinda scared bigger viewport will cause visual glitch. During the development, we noticed visual glitch because of pixel compression when using bigger viewport. So we make it smaller to minimize the visual glitch. But it damage the gameplay experience. Probably need to explore a bit about vertex shader to solve the problems.
Thanks again for the comment ^^