Growing environmental awareness, along with EU governments incentivizing EV production and adoption, are spurring sales.
According to the Mannheim Used Vehicle Value Index, wholesale used vehicle prices increased 9.2% last month.
Analysts say new and used car prices are on the rise as chipset shortages squeeze vehicle supply.
J.D. Power Valuation Services said the used vehicle market closed with an uptick in 2019.
The report also says worldwide revenue from sales of autonomous trucks and buses reached $84 million in 2017 and the market will continue to develop at a strong pace over the next few years.
Retail sales in June are anticipated to reach approximately 1.2 million, a 1.3 percent decrease compared with June 2016.