Question 1

What autocross class is a BMW Z3 (6-cyl, non-M)?

Accepted Answer

A stock 1997–2002 BMW Z3 (6-cyl, non-M) runs in CS (Street) in SCCA Solo autocross. Street: 'Z3 (6-cyl, non-M) (1997-2002)' = CS. ST: 'Z3 (6-cyl)' = CST. 4-cyl = ES/EST. P: 'Z3 (6-cyl) (1999-2002)' = FP.

Question 2

What Street Touring class is a modified BMW Z3 (6-cyl, non-M) in?

Accepted Answer

With Street Touring-level modifications (coilovers, intake, wider 200TW tires within class limits), the 1997–2002 BMW Z3 (6-cyl, non-M) runs in CST.

Question 3

What Street Modified class is a BMW Z3 (6-cyl, non-M) in?

Accepted Answer

A heavily-modified 1997–2002 BMW Z3 (6-cyl, non-M) runs in SSM in the SCCA Street Modified category (placement by drivetrain and body per §Street Modified).

Question 4

What else can a BMW Z3 (6-cyl, non-M) run?

Accepted Answer

The 1997–2002 BMW Z3 (6-cyl, non-M) is also eligible for XA/XB (Xtreme Street), XP (X Prepared (open)).

What autocross class is a BMW Z3 (6-cyl, non-M)?

Class by preparation level

Also eligible for

From the 2026 rulebook (Appendix A)

Other CS cars

Stock (Street)	CS
Street Touring	CST
Street Prepared	—
Street Modified	SSM
Prepared	FP