Defender Front Centre Seat. We have options on our front centre seats that allow you to have a centre seat with or without a headrest. The headrest option is not available at a later date. So if you think you require a headrest for this seat you will need to order the correct seat. The seat base is removable to allow access to the inspection plate and locates into the existing mounting points.We recommend either a static lap belt or a 3 point inertia floor mounted belt.