Living in a just over 100,000 person city (Ann Arbor, MI), my friend notes that his average speed on his car (I guess it calculates it for him) is 20mph. He lives out around 45mph roads, and his route to school includes mostly 30mph roads. He claims that he has rarely if ever taken his car on highways or the interstates.

Thought some of you'd find this interesting, that under city and suburban conditions, most cars average about what a good cyclist would.