If all cars were made of spongy, "nerf-like" material, and perhaps had roller-ball wheels, and definitely made to run a bit slower on freeways - we could save thousands of lives each year - and have great fun at the same time. Imagine how many bazillions could be saved thru reduced (or eliminated!) insurance needs, and cheaper fuel costs... and repairs would be rare and cheap, too. We don't really need to race to work at 80 or even 55 mph.
Imagine how much more fun it would be to drive places. If someone hit your car you would probably laugh and wave! If I had to drive to work every day, I'd like it to be in a nerf car. It could change the world.
Reward: I'd like the chance to work on this project... or maybe just a bright red nerf car of my own.