Of all the high-tech trailers at Daytona International Speedway, NASCAR has one that's more elaborate, sophisticated and specialized than the rest. The 53-foot trailer houses much of NASCAR's new pit-road technology, which includes real-time feeds from 45 high-definition cameras that record every pit stop made during Cup races. Think of it as NASCAR's version of instant replay with the kind of intelligence that rivals pitch-tracking. ''We have people come in here who are launching bombs on guys hiding under bushes in Afghanistan and they're impressed,'' said Shawn Rogers, NASCAR's managing director of business operations. More...