The 1999 24 Hours of Le Mans was the 67th 24 Hours of Le Mans .
The 1999 24 Hours of Le Mans took place on 12 and 13 June 1999 .
The 1999 24 Hours of Le Mans was the 67th 24 Hours of Le Mans , and took place on 12 and 13 June 1999 .