one if my favorite things to do in burnout 3 was drive into oncoming traffic and rack up near miss combos. It helps that you got progressively more nitrous as you went so you had a direct gameplay incentive to take the risk so you could go faster and win the race.

You might need to add another gameplay layer to this and somehow weave this traffic navigation mechanic into it to give players a reason to engage with the game. You can make a lot of things fun its just about balancing your mechanics and systems.

Your game reminds me a bit of Spy Hunter where you navigate around cars and vehicles and use various weapons and gadgets to escape the bad guys. Maybe you could do a modern take?