This is my take on Prototype 1. I tried to get the driving to feel more realistic than just translating the vehicles so I used wheel colliders. Some of the included features are obstacles (made with prefabs), auto-driving cars, cycle camera views, rear view, split screen, winning celebrations, speedometer display, respawning, countdown timer, and I'm sure I'm missing something here. I also used lots of scripts. Let me know what you think! If you have any questions about how I did something, I'll do my best to reply.