"For the car" refers to the all the inside the racing car communications needs. This includes in car IMSA and NASCAR in car harness for mobile radios, handhelds, roof mount antenna, coax cable, radio jumper to connect to an any radio, and a coil cord PTT (push-to-talk) button for the driver.
Handheld radio kits provide easy portability with a couple more options and a more affordable price. 5-watts of power, handheld radios offer range of about 2~3 miles, making them great for circle track and road racing tracks. For extra range, you might want to add a long range antenna to both your car and the crew radios.