Los Angeles will be hosting the Olympics again in 2028. Although the Coliseum was built in 1923, it was an iconic venue for the previous games in 1932 and 1984, so maybe it's a bit of early publicity. However, it doesn't look that well suited to NASCAR racing.
It's a shame they closed the Riverside Raceway in California (as seen in footage in 'Undercover Dukes'). That closed in 1989 and held its last NASCAR race a year earlier. The site is now covered by housing and a shopping mall.