Bought a leather repair kit of eBay for 20 quid and went about trying to repair my cracked artico, I have posted earlier in this thread the before pics so here's some after pics, not bad for a first attempt
300SL (R129 1992 pre-facelift), Volvo V70 SE D5 Auto Geartronic
Unfortunately plastic cracks / rips easily and is not as durable as leather...I do agree on the used car market traders will not distinguish between artico and real leather seats...
I am sure to remove the cushion the seat will need to removed from the car...