Regan Smith was quick to accept an offer to race in the Daytona 500 as Kurt Busch's replacement driver. ''I've asked her to keep her legs crossed as long as she can if she does go into labor,'' Smith joked at Daytona International Speedway last weekend. Everything worked out just fine for the Smiths, who welcomed son Rhett Lee on Wednesday, an off day for NASCAR drivers. The baby had a short window to arrive: Smith gets back on track Thursday at Atlanta Motor Speedway, where he'll drive Busch's car for Stewart-Haas Racing in an open NASCAR test. More...