Greetings I'd like the game to have a realistic backfire animation based on the engine system setup like air to fuel ratio & etc, where it is flexible rather than being stable especially depending on the gear shifts & RPM that sometimes it becomes like a flame thrower. Also that depending on the exhaust temperature where it will cause the fuel to burn into flames when it exits the exhaust pipes with also exhaust temperature warning systems where when there is not enough cooling or overheating - it will start glowing red then melts if not getting enough cooling. Also that it has different colors depending on the car & kind of exhaust where it shoots blue flame or orange depending on the engine position like in some supercars like Mclaren MP-4 or P1 where they start emitting blue flame while accelerating and when slowing down. Like these: Or like those dragsters unstoppable backfire:
