The week after this year's Pikes Peak Hillclimb, we brought you the first video of Jeff Zwart driving the Porsche 911 GT3 up the partially-paved mountain in practice. Today, we have a more expansive view of the run, but the sound alone makes it worth the 4:13 runtime.

The run itself is significant, however, with the 911 GT3 finishing just a little over 50 seconds behind the unlimited class populated by the likes of Nobuhiro "Monster" Tajima and Rhys Millen--both in factory-prepped full-on race cars. Zwart's Time Attack Porsche is much closer to a street car.

On to the video. And be sure to crank the volume up. Unless you're still at work--in that case, find some headphones. You don't want to miss the sounds of the flat six singing its way through the curves.

[YouTube via Autoblog]