A few years ago, I bought a used govt. vehicle at auction for $3000. It was 5 years old but had only 18,000 miles on it. I got many years of excellent service from it. It is very common for government vehicles to be used very infrequently and for only short trips. The use of alternate-fuel vehicles will help but is not enough. Vehicles available for, and used for, only short-trips should be plug-in electric vehicles. They have much lower "fuel" cost, lower maintenance costs, and longer usable life of the vehicle. These could be electric-only or hybrids that are designed primarily for plug-in electric use but have a small gas, propane, or diesel engine for emergencies. They should be retained for govt. use as long as they are servicable and not sold with only "18,000" miles on them.