Fuck me... i never thought id see this....i had the same problem with the nova and it all came down to the lower arms in the end. I put corsa ones on as there strengthend but caused alsorts of trouble, squealing and the height issue like yours. On closer view there are slight differences between the nova and corsa ones. Swapped them alls well. Still want coilovers tho to correct the height at the front as i say its too high. If your at trax come and see me and have a chat.