I have built a RC car before using an arduino, two continuous rotation servos, and some RF M4 receivers and remotes from Adafruit. It is REALLY slow. It receives around 6.4 voltage and the load on the servos is about 9 ounces give or take a few. It takes the total fun out of the RC.
I want to know if there is any motor, ANY, available on Adafruit only that I can purchase for under $30 that is very fast. It needs to be able to maintain speed while holding less than one pound. Thank you so much for your help. Im obsessed with creating a fast, light, and small Arduino car.