Just why, he isn't sure. Some buyers had hesitation about the durability of hybrid batteries a decade ago, but the fears proved unfounded. They don't conk out or lose storage capacity at the rate some feared. And resale values of Chevrolet's Volt, a plug-in with a backup gas engine are holding up.
Reached for comment, Nissan officials note the effect of federal tax incentives and how the reduced price of the Leaf this model year could affect residual value. Plus, the electric car, or EV, revolution is still in its infancy. The market for used electric cars is yet to develop.
"We expect to see a similar adoption curve for used EVs as we have for new EVs, and we are just now reaching the point where there are used EVs on the market," says Erik Gottfried, director of marketing for Nissan Leaf. "EVs are one of the most active and fast-moving segments of the automotive market."
(Read more: Musk sees opportunities in electric airplanes)
Actually, he says he thinks the Leaf will make a particularly appealing used car. Just like the new ones, the used ones are "quick, quiet, roomy, inexpensive to maintain and cost much less to fuel."
As for the rest of KBB's list, it's mostly luxury cars. They are likely to show a big drop in value because they sold for a high price in the first place. Prices fall more, although they still often resell for more than mainstream cars.