Daytona 500 postponed until 7 p.m. tonight

The Daytona 500 - which had never been postponed in its history - has been delayed again.

NASCAR was going to try a noon Eastern start today for 2012's biggest Sprint Cup Series race but has now rescheduled the season opener for 7 tonight. It will be broadcast live on Fox.

Rain continues to fall in the area.

NASCAR President Mike Helton said there was a "reasonable expectation" the race can begin by 7 p.m.