I fitted dc5 seats to my old R, 'twas a bitch for passenger seat just because to get the seat to fit n a good position the inner rear seat mount is under the seat which is a **** if i were to do it again i would chop it off a re weld a new mount in place drivers was a peice of piss std rails dont work unless you like looking out sunroof if you have one custom mades is the only way to go im afraid.