ChampCar Tech Desk

The tech desk is used to ask technical questions and is not to be used as a post race tech line or to phish for how others built their cars.
Please reference the BCCR as most questions submitted to the TechDesk can be answered by reading the BCCR.
You can download the BCCR here:

2020-03-20 - Passenger seat rule clarification

We installed a passenger seat in our car for HPDEs and to take advantage of practice days where passengers are allowed (like Watkins Glen.) It is of equal specs to the driver's seat/harness. We recognize the BCCR allows no passengers during a race, however, it does not state any rule for having a passenger seat installed during the race. We were told by several officials @VIR that passenger seats weren't allowed, yet I could not find a reference to any rule that stated this.

We are building a Mazda Miata for the first time with ChampCar.  I wanted to put a passenger seat in the car to use during test sessions for use during coaching. it would be a race-style seat with 5 point harness, that would be removed before the race.
Is this allowed?
If so, any other safety requirements?


Our policy is no passengers during the race.

I recommend people remove the seats for the race as corners can sometimes mistake them for a person, but we do not require their removal.

When ChampCar hosts a test day, we allow passengers for instructing purposes.

Mike Chisek

© 2009-2023 ChumpCar International Inc., All rights reserved.
ChampCar Endurance Series ® is a Registered Trademark of ChumpCar International Inc.. ChampCar, CCES, and ChampCar.Live,
are trademarks and /or service marks of ChumpCar International Inc..
The ChampCar Endurance Series Logo and the ChumpCar Logo is a service mark of ChumpCar International Inc. and is fully protected.