The event also attracted banks ready to offer financing for women buyers.
"Anything related to cars these days is attracting Saudi Arabian women. I want to know more about cars and prices," said Shaimaa al-Fadl as she climbed into a car at the exhibition and adjusted the rear-view mirror.
The royal decree will end a conservative tradition seen by activists as an emblem of the Muslim kingdom's repression of women.
The decision could change the lifestyles of millions of women. About 10 million women over the age of 20 live in Saudi Arabia, a number that includes foreigners, though it may take years for women drivers to be a major presence on roads.
While the decree could save families money and encourage women to seek jobs, it could also be bad for one class of employee - the chauffeurs who traditionally ferry women around town.
(Except for the headline, this story has not been edited by NDTV staff and is published from a syndicated feed.)
Get Breaking news, live coverage, and Latest News from India and around the world on NDTV.com. Catch all the Live TV action on NDTV 24x7 and NDTV India. Like us on Facebook or follow us on Twitter and Instagram for latest news and live news updates.