Originally Posted by gonzo416
What does it cost? Can it track more than one car?
No it's a personal lap counting, you can buy separately the transporter if you have many cars and you don't want to transfer it from car to car.
If you want to download the laps to you computer you must also purchase the cable.
The best thing about the system in comparison with others is that you can hear you lap in every pass and check live your pace. You will be amazed how useful it's and you will discover that slow is fast. Progressively you will understand were you made a mistake that cost you some time in one lap.
The lap counting has some other features also you can read them in the site of grenit.