Infineon, also known as Sears Point and Sonoma, is the more technical of NASCAR's two road courses. A lot of folks don’t realize it, but the race distance at Infineon is measured in kilometers. It’s actually 354.2 kilometers to be exact, which is 110 laps and roughly 220 miles. The track features 10 total turns for Cup racing and hosted its first Cup event in 1989, where Ricky Rudd was the winner.

As a road course, Infineon is tough on everyone, from spotters to drivers, crew chiefs, pit guys, chassis guys, and the engine department. But of all these factors, the driver is still most important. With the constant turning and shifting, one tiny mistake can really cost you.

The drivers who do well here know the track well enough to be aggressive. They’ll get track position and then be very tough to pass. In fact, there is really only one good place to pass, though it's possible elsewhere, and that's turn 10, the hairpin turn at the end of the course before you head back to the start-finish.

Pit strategy is also key at Infineon. Because you do not go a lap down pitting under green, you want to come in as soon as you hit your pit window. Better fuel mileage can be a big advantage, because it allows teams to make their final stop first.

This is the more technical of the two road courses, which means the racing may not be quite as interesting as it is at the Glen, but the winners are usually the creme of the crop on the roads. There's really only one good place to pass, so you better know how to get through the hairpin.