Sunday's final day of Rolex 24 testing could be a wet one. The five-day race week begins Wednesday, and the weatherman wants to have a word with you.

You don't need a weatherman, they say, to tell which way the wind blows. But forecasts say good stuff is blowing in before the Rolex 24 this weekend.

The sophisticated machinery often draws the focus in sports cars, but there also are more than 230 drivers across the 61 entries in the Rolex 24 at Daytona. The 63 rd running of the IMSA WeatherTech SportsCar Championship season opener annually draws motorsports stars hailing from racing series around the globe,

Race cars hit the track Friday in Daytona Beach. They will continue testing, with two VP Racing SportsCar Challenge races mixed in, until Sunday.