Another thing to keep in mind is that the bulk of the wear in a ICE is in the first few miles before it is completely warmed up. I know for a fact my diesel truck takes a good 5-7 miles before it is fully warmed up. IMHO most if not all trips under 10 miles should be completable by bike. I realize there are exceptions, however it was taken into account when planning shopping and housing it would make a huge difference on many fronts.
Aaron