27 cars on a 8×10 lot. 70 seconds on the clock.
27 cars left
You have 70 seconds, starting at your first tap. A bump costs 3 seconds.
Drive the cars out in this order: 1, 3, 2, 4, 6, 5, 7, 8, 9, 10, 12, 13, 14, 17, 16, 18, 19, 22, 11, 23, 21, 24, 25, 26, 15, 20, 27.