06/19/2026
NCDA's San Diego Auto Outlook covering registration data and industry insights for May of 2026 is available online:https://www.ncda.com/wp-content/uploads/2026/06/San-Diego-Auto-Outlook-May-2026.pdf
Here are several key facts, trends and developments in the San Diego County new vehicle market:
▪️ Year-to-date results. San Diego County combined new retail car and light truck registrations are down 11.1% year-to-date through May as compared 2025, a slight improvement over the -13.0% YTD number from last month. New retail registrations nationwide have decreased 7.8% during this same time period.
▪️ Market share by powertrain. Comparing YTD 2026 to 2025, gasoline vehicles have shown an increase in market share from 51.6% to 56.0%, and hybrids from 21.0% to 23.8%. This comes at the expense of BEVs, which have seen their market share decline from 21.2% to 15.8%, and PHEVs, which have seen a similar drop from 4.3% to 2.5% of YTD registrations.
▪️ Monitoring brand sales performance. Tesla, Nissan, Kia, Honda, and Acura have experienced the largest percent increase in registrations during the past 3 months (March ’26 thru May ‘26) vs. the preceding 3 months (December ’25 thru February ‘26) among top 20 selling brands in San Diego County.