I'm thinking that there will be a lot of interest in your Station Wagon if it can go from 50 to 0 in 15 feet. Are you using an anchor?
Drivers manual lists 60 to 0 as follows.
SPEED = 60mph
"THINKING" DISTANCE = 60ft
BRAKING DISTANCE = 180ft
OVERALL STOPPING DISTANCE = 240ft
I would love to see a video of that stop but I darn sure don't want to be in the passenger seat when you do it.
Just doggin you. Don't take any offense.