How much less do you want to bet on? Also how much do you want to bet?
You might want to narrow this down by location.
Take a 10 mile trip in Menlo Park (which they once called "urban" in a video) is different than a 10 mile trip in Manhattan... in February
So how about it has to take GP from his home to a destination 100+ miles away, the car has to park itself in a legal spot, and it must reverse at least once during the trip? And I'd like to see it done at least 3x, including once when it's not perfect weather (could be foggy, moderate rain, light snow - whatever).