The average price of each car was $21,648, the ISNA news agency reported.
The cars were mainly imported from the UAE, South Korea, and Oman.
Wealthy Iranians are fuelling an unprecedented luxury car boom despite sanctions hurting their economy, paying up to $360,000 for high-end autos, AFP reported in April.
Iran's automobile market is highly protected against imports, allowing in only 40,000 vehicles last year, despite steadily growing demand mostly met through domestic production of some 1.6 million cars per year.
There are now an estimated 14 million vehicles on Iran's roads, more than double the six million registered in 2005.