A conversion assembly for enabling or improving wheelchair accessibility to a front-wheel-drive vehicle, wherein said assembly comprises rear suspension mountings for fixing to the structure of the vehicle in place of an existing rear suspension such that a portion of a floorpan of the vehicle of sufficient width to accommodate the width of a wheelchair can be lowered between said rear suspension mountings. A method of converting a front-wheel-drive vehicle to enable or improve wheelchair accessibility to the vehicle, the method including the steps of removing an existing rear suspension from the vehicle, installing rear suspension mountings to the vehicle, one at each side of the structure of the vehicle, and lowering a portion of the floorpan of the vehicle between said rear suspension mountings.