A fitted rear bench does not make it safe to carry passengers
Cage tubes, stays and mounting feet can sit inside the space a rear passenger needs in a crash. The cage drawing, car and intended use decide whether the rear bench remains trim only or comes out.
Treat access and occupancy as separate questions. A half cage may leave the bench physically in place while making the rear passenger space unsuitable. A full cage usually removes practical rear access and adds more tubes near occupants.
Road padding and competition padding are not substitutes for safe occupant space. Ask the cage maker and a competent installer about the exact vehicle and seating plan.
Locate every tube and mounting foot
Check the main hoop, rear stays, diagonal, harness bar and door bars on the current manufacturer drawing. Then compare those points with the rear bench, head restraints, belts and the path a passenger uses to get out.
Garreth will ask for the exact cage code. A photograph of a similar car is not enough.
Head and body clearance matter in every direction
A belted passenger can still move during a collision. Tubes behind or beside the head create hard contact points, particularly where the standard trim and crumple space have been replaced. If the cage maker does not approve occupied rear seats, do not carry rear passengers.
Removing the rear belts or clearly converting the car to two seats may also need insurer and vehicle-use advice.
Check the road car and the event separately
Tell the insurer about the cage and seating change. MOT presentation, registration details and local road requirements need checking for the individual vehicle. For competition, use the current Motorsport UK NCR, championship rules and cage homologation or certificate.
A track-day organiser can impose conditions beyond ordinary road use.
Choose cage, seats and restraints as one system
Set the front seat, belt or harness and cage together. Check seat travel, helmet clearance, shoulder-strap route and access to every fastener. Use the cage maker’s current instructions and a suitably experienced installer.
Do not cut or alter a certified cage to save the rear bench without written manufacturer approval.
Rear-seat and cage questions
Can I leave the rear bench fitted with a half cage?▾
Sometimes as trim or luggage support, but that does not approve rear passengers. Check the exact cage drawing and maker guidance.
Does roll-cage padding make rear passengers safe?▾
No. Padding cannot create adequate occupant clearance or change an unapproved seating plan.
Will the car still pass an MOT?▾
That depends on the vehicle, seating and belt changes and how it is presented. Get vehicle-specific advice before the conversion.
Can I modify the rear stays?▾
Not without written cage-manufacturer approval and an installation that remains compliant with the relevant rules.
We will check what occupies the rear space
Tell us the car, cage, front seats, restraints and whether anyone must use the rear bench.
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