This would be a stupid nanny to have on a vehicle IMO. What happens when you're trying to get up on a lift and need to be on the brakes and gas at the same time to avoid going too far. Or just like someone else said...on a boat ramp trying not to roll back in the water or light up the tires. Luckily my Bullet isn't very heavy and I have AWD because some ramps are STEEP and slippery when wet.