Bikes tend to overheat more then cars, are you disagreeing with this? Your telling me that at very slow stop and go traffic in 90+ degree weather your bike isn't running hot? Hell I have ridden my friends gsx600 and sat at a stop sign for 30-40 seconds and literally watch the bike rise nearly 5 degrees, then lower as soon as I started riding again.
I am. A bike had a easyer time keeping kool then a car does. Bikes are wide open to the air, where as a car engine isnt. Its under a metal hood which traps heat from the engine in. Which is one reason cars require fans to help keep them kool. Cars require alot more to stay kool then a motor cycle does.