This is a pretty rudimentary clone of the original. It functions to an extent but it's a little disappointing. First, turning doesn't feel great. It's very linear and feels very mechanical. Some kind of easing in and out might make this feel better but it isn't too important. More important is the amount of jittering which occurs when you drive toward the edges of the course. It's rather unsightly and it shouldn't be too hard of a fix.
Additionally, the use of only primitive shapes can be effective but it feels very placeholder-y right now. The enemy in the game being a default colored floating cube just feel a bit lazy. The cube also does not comply to the boundaries of the road as it moves left and right seemingly on a timer.
Overall, I'd say it's a good start but there's a lot of polish missing that could make this feel a lot better.