OK,OK. you'll have to excuse me 'cause it's hard to type with tears in my eyes from laughing.....
I just got my order from Estes of 1/4 3A rocket engines for my rocket/jet car. When I ordered, I saw something that got my interest and ordered it, too.
What I got were a couple 6" PARACHUTES !!!
So, I put a hook on the end and placed the chute to the side of the track finish line with the hook across the guide slot. The result looked AWESOME !!! the chute popped up just right and held for a couple seconds as the car stopped.
Next it was time to try with a car that has NO breaking at all (direct motor drive - this car would drift the entire 12' shutdown area and smack the wall). Guess what (laughing), the Parachute STOPPED THE CAR at about the 6' mark !!!
I guess my next project is to put a "Dump tube" mounted between the track rails from under the track so the chute comes out (from UNDER the track) as the car(s) cross the finish.
Chute placed next to track
Hook across guide slot
Car comes to stop