As nordique14 says, you can adjust the angle of the thigh bolsters. Play with the seat adjustment buttons. I also found it less comfortable with the front seat extension out.
It will work out. I am 6' 4" / 300 Pounds. When I first drove the car I thought I was in trouble with the fit (like you), but the seat will settle in. It can bend a little bit to your shape over time. I was uncomfortable for the first few weeks, but just took a 4 hour road trip last weekend without a thought.
-eric