Mike Hull, Scott Dixon's race strategist at Chip Ganassi Racing, opens a new video series with RACER's Marshall Pruett where he breaks down the pit stop strategy, fuel stint lengths, and where caution periods tend to emerge at the Firestone Grand Prix of St. Petersburg as a primer for today's...

Changing surfaces has made the tires slow to warm up, drivers say. (Nigel Kinrade/LAT photo) Leading NASCAR Sprint Cup drivers believe new track surfaces, not the Goodyear tires, are to blame for the major grip problems that blighted Sunday's Kansas Speedway race.The event featured a track record 15 caution periods,...