Rulebook Archive

2020 SCCA Autocross Classes & PAX Factors

Browse all SCCA autocross competition classes for 2020. Each class includes its abbreviation, full name, and PAX index factor used to normalize times across classes for combined rankings.

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Class Index

Abbreviation	Class Name	PAX Factor
AM	A Modified	1.000
AS	A Street	0.819
ASP	A Street Prepared	0.849
BM	B Modified	0.962
BP	B Prepared	0.867
BS	B Street	0.814
BSP	B Street Prepared	0.852
CAM-C	Classic American Muscle Contemporary	0.818
CAM-S	Classic American Muscle Sport	0.833
CAM-T	Classic American Muscle Traditional	0.817
CM	C Modified	0.893
CP	C Prepared	0.851
CS	C Street	0.809
CSP	C Street Prepared	0.865
DM	D Modified	0.895
DP	D Prepared	0.866
DS	D Street	0.806
DSP	D Street Prepared	0.842
EM	E Modified	0.896
EP	E Prepared	0.850
ES	E Street	0.793
ESP	E Street Prepared	0.839
EV	EV	0.824
FM	F Modified	0.911
FP	F Prepared	0.868
FS	F Street	0.804
FSAE	Formula SAE	0.963
FSP	F Street Prepared	0.823
GS	G Street	0.792
HCR	Heritage Classic Race	0.815
HCS	Heritage Classic Street	0.794
HS	H Street	0.780
JA	Junior Kart A	0.855
JB	Junior Kart B	0.820
JC	Junior Kart C	0.718
KM	Kart Modified	0.930
SM	Super Street Modified	0.854
SMF	Street Modified FWD	0.841
SS	Super Street	0.822
SSC	Solo Spec Coupe	0.805
SSM	Super Street Modified	0.875
SSP	Super Street Prepared	0.853
SSR	Super Street R	0.843
STH	STH	0.813
STR	Street Touring Roadster	0.827
STS	Street Touring Sport	0.812
STU	Street Touring Ultra	0.828
STX	Street Touring Xtreme	0.816
XP	X Prepared	0.880
XS-A	XS-A	0.844
XS-B	XS-B	0.864

51 classes listed for 2020.

PAX information obtained from SoloTime.info.

Classes / PAX

2020 SCCA Autocross Classes & PAX Factors