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By regulation, the minimum occupant cell size is based on a 50th percentile male (not including helmet space). Thus, as a team we have a say over who will be able to fit inside our vehicle.

ASC Regulation tl;dr 

The occupant space by regs is defined by an 835 mm arc pivoting about a designated point. Nothing can be within this arc with the exception of the steering wheel, mirrors, and seats. When occupants are seated normally, with safety-belts and helmets on, no part of the occupant nor the full free range of motion of the occupant's head (with helmet) may extend beyond the occupant cell (defined as roll cage + structural chassis). For ASC there is no minimum amount of space between the occupant's helmet and the extent of the occupant cell. (For WSC on the other hand has a minimum space of 50mmonly, no point of any occupant’s helmet may lie within 50 mm of the convex hull).

By regulation, the minimum occupant cell size is based on a 50th percentile male (not including helmet space). Thus, as a team we have a say over who will be able to fit inside our vehicle.

Our Internal Goals for Sizing

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This applies primarily to our own drivers and passengers with respect to operating the vehicle on a track and during competition. All occupants will be wearing helmets, carrying ballast (ballasted to 80 kg/ 176 lbs), and acting with a competition mindset (focus on efficiency and performance rather than comfort). We have very much control as to who these drivers/passengers will be.

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Showroom Scenario

This applies to scenarios where other people, whether they be scrutineers, sponsors, or the general public will be looking at our vehicle. We have no real say over the size/weight of these people and we must do our best to accommodate these people while also managing expectations. These occupants will not be wearing helmets nor carrying ballast and will be assessing the vehicle interior on its look, feel, and comfort for a real-world scenario.

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There is a special case that is a combination of the above 2 scenarios. During competition, our vehicle will be assessed on its "practicality"  " taking into account both scenarios. During this assessment we will have the opportunity for scrutineers to sit within our vehicle. This may include a test drive with the scrutineer(s) in the passenger seat and/or rear seats. For this test drive, the scrutineer(s) will have to wear a helmet and 5-pt safety harness.

Range of Expected Occupant Size/ Weight

*Note that a helmet is not included in any of these measurements

Who We Can Accommodate

Regulation Occupant Cell Size

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