i managed to fit them in my mk4 escort front and rear

takes a hell of a lot of mods to get the backs in but couldnt work out how to get them to clip in at the back but didnt matter as they were that big and heavy they just stayed there

aslo with the back base the rear passengers head were almost touching the roof and sat higher than the front passengers

fronts were just a case of modifing the subframes to fit but they are very wide

my mate also modded them so they would recline to let passengers in but this kept failing

if you have time and patience then do it but take your time but its a lot of work for something you may not like