If you look around you'll see that every little section of the automotive world has a key event that defines the subculture. For example if you fancy JDM tuning then Tokyo Auto Salon is the place to be. If you are a Hot Rodder then a pilgrimage to Bonneville is high on your to-do list. After my weekend at Laguna Seca it's clear that the Rennsport Reunion holds the same status among Porsche enthusiasts in North America.

The first Rennsport Reunion happened back in 2001 at Lime Rock Park in Connecticut, and quickly became a gathering of legend. Two more Rennsport Reunions were held at Daytona in 2003 and again in 2007, with each bigger than the last.

This year marks the fourth Rennsport Reunion, and its first visit to the West Coast. Porsche owners and racers from near and far came to Laguna Seca to take part in the event.

Porsche Cars North America is heavily involved with the planning of the Rennsport Reunion. In fact, they chose to hold the North American debut of the new 2012 911 at the event.

Among the attractions at the Rennsport Reunion was an incredible lineup of historic Porsche race cars, some of which were brought over from the Porsche Museum in Stuttgart.

The real show though, happened on the hills and corners of the historic Laguna Seca course. The sounds of Porsche race cars echoed off the sandy hillsides all weekend long.

Every era of Porsche history could bee see in the race groups. Whether it was the glorious 911s of the '60s and '70s…

…or track-tuned beasts from more modern times. I can't be the only one who sees just a bit of RWB in this 993.

One of the many GT3 Cup cars competing in the Rennsport Reunion Cup.

Another race class included a fine selection of Porsche prototype cars from the 1980s like this 962.

I think I speak for many when I say that the most exciting race group was the Weissach Cup, which was made up of prototypes from the '60s and early '70s. Here we see Brian Redman in his '71 908/3.

If that wasn't enough, every parking area around the track was filled with Porsches as far as the eye could see.

I came across plenty of cool machines during my strolls through the parking lots. This tidy 997 for example.

Meanwhile the vintage Porsche fans should dig this low 356.

Elsewhere in my travels around the event I found a very cool display of scale Porsche race cars.

Tell me these 917 door replicas aren't some of the coolest pieces of wall art ever.

A little JDM touch with the Trust livery on this 962.

Another sight from the paddock, a 935/78 in famous Brumos Porsche colors.

The timeless lines of the Porsche 356. Lines of course that can still be seen in the latest 911 models.

Let's not leave out the front-engine Porsches now. This Rothmans-colored 944 was holding it down for the FR crowd.

For Porsche fans and fans of vintage racing in general there are few sights better than a 917 at speed. The opportunity to see that alone was worth the trip for many.

I've got lots more to come from Rennsport so stay tuned for more Porsche loving throughout the week.

-Mike Garrett