If the game freezes, just click inside it (games can get unresponsive if you click elsewhere on the page).
How about driving and parking one really big truck? Sit behind the wheel of the enormous CAT Dump truck and drive very carefully, it’s a test. If you touch any border, you instantly fail your CAT truck driving test. Through 12 increasingly difficult levels, you can test your skills, and use different camera angles to aid you with that.