I have a 318iS from '94. I've had x-rays taken and apparently the seat-to-roof height is is causing me back problems because I have to lean to the right by about 5 degrees when I drive (basically, I'm too tall for the car). I really don't want to sell the car, both for financial reasons and because I really do like it. Does anyone know about any BMW or aftermarket seats or seat cushions that could solve the problem for less than $200 USD? I only need about an inch, maybe 1/2. Any help or insight is much appreciated. Thank you.