Are the front doors on the Tarraco identical in shape and size to the Tiguan Allspace? If so then they should fit.
I find the Heko deflectors invaluable as it means no 'chopping' when rear windows are open, also you can open the front windows with out any rainwater creeping in around the A pillar.
All fitted and looks great and will get some photo's up soon.
The clips are a bit fiddly to fit as they fit under the rubber seal.
Also I found they only hold one way with the gripper facing into the car.
Looking forward to the pics. On my last car I fitted them without the clips, but for the life of me I cant remember how/why. I do remember that at first the windows would not close as they thought that there was an obstruction.