Nice game!
Things I liked:
>Controls: I actually felt you did a really good job, especially with the limited time you had, getting controls that felt like i couldn't just hold forward the whole time.
>Graphics (how did you make the cars?): I quite liked the low poly aesthetic, took me back to Daytona Racing ;)
Things to improve:
>Audio: Some background music would have been great and some revving/tire-screech sounds would be nice too; I did love the starting beep sound effects though haha, they sounded a bit like mini farts haha I got a laugh out of them (even if that wasn't your intention, I think it was better having them than not).
>Theme: I thought 'rewinding through your career' was a bit of a cop-out, so I felt the game adherence to the theme was a bit weak; although I'm also glad that you didn't just add a rewind button to undo crashes, that would have made the game pretty bad in my opinion.
Overall quite an enjoyable and fun game!