Drive of Mark x is gud then CL9, Mark x is more luxurious then CL9, sum ppl like the luks of CL9 bt sum luv Mark x luks, Mark x giv gud mileage bt i think they both hav no comparison, mark x is frm lexus/crown fmly, its more luxurious then cl9, bt cl9 on its place luks gr8, its interior luks stunning, its drive is smooth, both r great rides