Probably almost everyone here has occasionally succumbed to the temptation to peel out when you have pole position at a stoplight. And probably almost everyone has experienced how easy it is to exceed the speed limit when you do that, even when you're trying not to. I'd like some way to tell the car that I'm going to floor it, and I want it to get me to the speed limit as fast as possible, without exceeding the limit. Then I want it to clear that option until the next time I invoke it. Naturally such a feature would be no substitute for using your judgment, but that's the same with any driver-assistance feature.