It was February 1970: Saab Built there 500,000 Car, it was a European Model Saab 99, which was also the first year the Automatic transmission was offer in Saab cars. Six years later the 1,000,000th would follow. Also, this year Saab introduces a ‘world-first’ – headlamp wipers and washers. In 1970, total car production at Saab was 73,982, 29,775 of which were early-model Saab 99s.
The 1970 SAAB 99 still had the freewheel feature in the manual gearbox as well.
Here is a Picture of the 500,000th Saab 99: