I know it doesn't answer the specific question re the front passenger seat, but on my dealer launch night the drivers seat at it's lowest was certainly higher than the Crosstar and at full height was even higher than my Karoq.
Demos should be in the dealers very soon will report here as soon as I get my test drive.
Most of them have arrived at Bristol with a further drop at Southampton ETA 26th October. a further boat is on it's way, exiting the Suez canal as i write. ETA Bristol 28th October. Carrying certain colours excluding Khaki Sand (Had to be the colour I ordered!!) ETA 9Th January.