I took a test drive in a low mileage 83 wagon. (imported into The Netherlands in 2018). The seats in this car are manual seats with the checkered pattern. In order for me to have a good seating position the backrest should be more straight up. Is there a way to do this? As I haven't bought the car I cannot start dismantling the seat to look if this is feasible. If I would manage to get leather electrical seats (like in a Limited) would the backrest of these seats be more straight up?