Used car prices up across the board. This from cargurus says 10% Year over Year, and Chevrolet up 15%:
www.cargurus.com
Can also see some Manheim data here, all used car prices last few weeks up up up:
Used Car Price Trends - CarGurus
Track automobile price trends. Find out which cars are going up or down in price. Compare to index and historical prices.

Can also see some Manheim data here, all used car prices last few weeks up up up: