Indy Grand Prix of Sonoma 2013 Saturday Practice

Indy Grand Prix of Sonoma 2013 Saturday Practice Photos and Stories.

Photos and story provided by David Grube: Contact Photographer for Information.

Indy Grand Prix of Sonoma 2013 Saturday Practice

INDYCAR Race 2013-08-23 - 2013-08-25 Sonoma Raceway, Sonoma County, California, US

INDY CARS AT SONOMA:

They Are on the track! ... Practice Day

Cars have always been used for racing. The most specialized racecars have most always arrived at the track without covering over the wheels; or what is called "Open-Wheel" and have most always been some of the fastest cars made.

Think Indianapolis Raceway cars or Formula 1.

In the beginning, Indy cars were specially designed cars, which ran once a year on the great Indianapolis Raceway Oval and were made for turning left at the highest possible speeds. Now thanks to greater sponsorship the INDY CARS run on tracks all around the US and from time-to-time around the world.

INDY CARS have given up the "left-only world" and now run on select road-course raceways like Sonoma Raceway in Northern California.

This Aug. 23-25, the GoPro Grand Prix of Sonoma will have the screaming, open-wheel, top of the class cars running Sonoma Raceway's Twelve turns for a full 85 laps. Sonoma also provides fans ample opportunity to meet the drivers and see the pre-race show with the Patriots Jet Team six-jet air show, driver introductions and pre-race ceremonies featuring GoPro's incredible athletes.

You just got to be there, when the world of racing meets at one of the best tracks in the US with some of the best cars in the world

The support races are run with the INDYCAR series and are The Pirelli-SCCA World Challenge Series and Maserati World Series, and provide some of the best racing on the road courses

It may be INDYCAR but the support races are a real show

Cadillac CTS doing it in the dirt. Pirelli SCCA World Challenge Series GTS car

The Pirelli SCCA World Challenge Series Touring Car Spec: Cars get pushy through the turns and dirt will fly

Smaller cars only need 2 wheels on the ground

The "Pass" but is it allowed 'Off-Track"?

Speed vs. friction

Maserati Trofeo World Series
A single Marque factory series of Maserati ,race prepared by a dedicated group of technicians and mechanics for going fast