Grosjean faced a worst-case scenario ... another challenging track like the Nürburgring. On the opening lap, Stewart hit a puddle and hydroplaned at 170 mph into oblivion. There were no crash barriers ...

Phoenix NASCAR Cup Series practice saw flat tires and incidents as drivers prepped for the championship at Phoenix Raceway. See top results.

If there's one thing NASCAR is well-known for (aside from the racing, of course), it's the crashes. With cars frequently exceeding 200 mph and driving in close proximity to one another, crashes are ...