I mentioned yesterday that it had just started raining before the Porsche GT3 Cup Challenge season finale and thus, the series' season ender was probably worth a watch. Rain races are always great, but HOLY CRAP! I didn't expect to see the world's most expensive Slip-N-Slide.

Usually, GT3 Cup is one of the better behaved support series out there, but standing water on track is no joke. Within seconds of the green flag dropping, cars hit a long stream that had formed along the edge of the track surface and the pileup began.

It's been raining on and off all weekend at Petit Le Mans and all the support events associated with it. In a bout of "bless your open-cockpit hearts," the Prototype Lites race got hammered even worse by inclement weather.

The GT3 Cup guys, however, deserve a fist-bump for providing one of the biggest wipeouts I've seen all year.

Before the race, the three leaders in the series were within seven points of each other. The season championship was totally up for grabs. Add to that the fact that it was the last race of the season, and you've got an entire field who is going to drive as hard as possible in hopes for a win.

Check out the start of the race with full commentary here:

Holy moly, I haven't seen that many cars spin out like that since I last watched small children get turned loose in go-karts. Small children, full of birthday cake and other sweets, so hyper that the throttle pedal becomes an insta-mash item. Those kids.

Colin Thompson (piloting the Kelly-Moss ) was the only one of the three leaders to make it through the mess unscathed, but not without competition from Angel Benitez, who rode Colin's tail for nearly the full forty-five minutes of the race. Benitez couldn't find a way around Thompson, so Thompson won the race as well as the season championship.

If you are a Porsche fan and you weren't either in Austin at Circuit of the Americas this weekend…

Standing water, man. Should've brought a boat.