notice the b-pillar duct tape, its a single real seatbelt, so we just pulled it tight and taped the belt to the pillar to hold it “locked” then taped the tripod to the seat and seatbelt to keep it steady
1 tripod leg is on either side of the seat near the seatbelt pints, the 3rd leg is fully extended the belt / tape is pinning it against the front edge of the seat
next year the car gets a real mount. only used this setup for one run … and i made damn sure it was in ther incredibly tight … hell, it was held in there tighter then i was !