The last level doesn't have any blue cars and like, 20 rival cars. I suggest adding a way to save your times, to increase replay value. Great game, love the graphics, and this one was way easier than the first.
As long as the Daimyo is uncovered, you can use up your steps and still go back to him. But if you find him on the last step, you lose. And don't make the quit button so accessible in your next game :(. I loved it!