Nasr lone holdover in the winning No. 7 Porsche 963 for Porsche Penske Motorsports at IMSA Rolex 24 Hours at Daytona.

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 ...