An assembly for use in an automobile is provided including an automotive seat element including a seatback element having a seatback forward face, a seatback top face, and a seatback rearward face. The method involves determination of an image feature value from the image, and determination of corresponding texture feature values for each member of a set of textures. An output of the engine is mechanically coupled to a multi-ratio transmission which has a hydrostatic driveline and an output which is mechanically coupled to propulsion means. A plurality of serrated teeth extend along the first and second edges wherein each tooth has a first side and a second side which join together at a predetermined angle, which is approximately sixty degrees. The CHMMs have better performance than conventional hidden Markov models trained only on audio signals, or only on video frames.