New retail light vehicle registrations in the Chicago Area declined 21.7% during the first four months of this year versus year earlier. U.S. market fell by an estimated 16.6%. The seasonally adjusted rate of registrations during March and April was 303,301, down slightly from the annual total last year. Registrations increased for six brands: Mitsubishi, Genesis, Tesla, Porsche, BMW, and Mazda. Get the complete report in the May edition of Chicago Auto Outlook .