Car Classification

To determine what changes move cars between S, P, I and M classes see the complete PCA classing rules. The complete PCA classing rules can be found in the 2018 PCA Parade Competition Rules:  2018 Parade Competition Rules 1st Edition (Not yet updated for 2019.) Autocross rules are on pages 15-27. We use a modified version of the Small Region classifications. 

Porsche Classes
Oregon Region PCA Autocross runs under a modified version of the small region rules. Be sure to check the allowed modifications section in the Parade Competition Rules (see link above) if you have made ANY changes (including R tires or larger tire sizes) to your stock vehicle. The intent of the Showroom Stock class (S01, S02, S03, & S04) is to create a class for automobiles as normally delivered and specified for use in the United States and Canada. Factory options as normally delivered for a specific model year are permittedHowever, anything beyond this, especially anything that could be reasonably perceived as being performance affecting would not be allowed in Showroom Stock. For example, Automobiles must run with their spare tire, jack, lug wrench, owner’s manual(s), tools, etc. Cars running out of class will not receive Championship Points. If you have questions contact your Autocross Chairman prior to the event at: axchair@oregonpca.org.Cars

V01 (All Stock and Prepared Vintage)  All 356, 912, 914, 924, 911 (1965-1983)

S01  All 944, 928, 968, 911 except Turbo (1984-1998), Boxster base (1997-2004), all Cayenne, Macan, and Panamera (except Turbo)

S02  911 Turbo (1991-1994), 911 base (1999-2012), 911 S except X51(1999-2009), Boxster S (2000-2004), Boxster/Cayman base (2005-2016), all Turbo Cayenne, Macan, and Panamera

S03  911 (Turbo 1995-2005), 911 S/GTS (2007 X51, 2009-2012), 911 base (2012.5-current), Boxster/Cayman S/R/GTS (2005-2016), Boxster/Cayman base (2017-current)

S04  All GT2, GT3 and GT4, 911 Turbo/Turbo S (2006-current), 911 S/GTS (2012.5-current), Boxster Spyder (2016 on), 718 Boxster S/Cayman S/GTS

P01  All 944, 928, 968, 911 except Turbo (1984-1998), Boxster base (1997-2004), all Cayenne, Macan, and Panamera (except Turbo)

P02  911 Turbo (1991-1994), 911 base (1999-2012), 911 S except X51(1999-2009), Boxster S (2000-2004), Boxster/Cayman base (2005-2016), all Turbo Cayenne, Macan, and Panamera

P03  911 (Turbo 1995-2005), 911 S/GTS (2007 X51, 2009-2012), 911 base (2012.5-current), Boxster/Cayman S/R/GTS (2005-2016), Boxster/Cayman base (2017-current)

P04 All GT2, GT3 and GT4, 911 Turbo/Turbo S (2006-current), 911 S/GTS (2012.5-current), Boxster Spyder (2016 on), 718 Boxster S/Cayman S/GTS

I01  All air cooled Porsches (pre-1997) with Improved category modifications as listed in the current PCRs (Parade Competition Rules)

I02  All water cooled Porsches with Improved category modifications as listed on in the current PCRs (Parade Competition Rules)

M01  All Porsches with Modified category modifications as listed on page 23 of the 2018 PCRs (Parade Competition Rules)

Notes on Non-Porsche (NP) Classes

  • A Porsche with a non-Porsche engine is regarded as a Non-Porsche.
  • NP and NPA Street/Stock class automobiles must meet SCCA Street class rules.  This allows cars to have some non factory modifications including one aftermarket sway bar, aftermarket shocks, exhaust and larger tires and wheels than stock.
  • All Non-Porsche cars on R compound tires are in the Modified class.

NPF  Non-Porsche Front Wheel Drive

NPR  Non-Porsche Rear Wheel Drive

NPA  Non-Porsche All Wheel Drive Street/Stock class automobiles. Tires must be Uniform Tire Quality Grading System (UTQG) 200 or above.

NPM  All Non-Porsche Modified class automobiles. This class will include any modification beyond those listed above and allows any tires including R compounds.

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