Total vehicle sales for the period were down 4.4 percent.
Total vehicle sales in May were off 9.5 percent from a year ago.
"We should look forward to another four to six months of pretty good vehicle sales," he said.
For the month, total vehicle sales were down 14.1 percent, to 299,318 from 348,553 a year ago.
Total vehicle sales in the period were up by 27 percent, to 260,314 units.
For the month, vehicle sales dropped 11.7 percent from March 1987.
Vehicle sales rose 19.1 percent last month from February 2002.
Over all, vehicle sales were 334,066, compared with 271,616 a year earlier.
Second to agriculture is the vehicle sales and service industry.
Total vehicle sales were 395,598, compared with 334,066 last year.
