Any trip driving or sitting in the front passenger seat of my car leads me to feel leg numbness, pain down my right leg (if driving) and lower back pain. I get out of the car at one hour intervals on long trips but a three hour trip will cause pain that will last for about a week. I am currently experience ongoing pain in my right leg caused by an eight hour round trip taken over two days three weeks ago. These front seats make my hips sit lower than my knees which shortens hip flexors and causes pressure on my back. Although I am logging this complaint as of today, this has been my experience since I bought the car ten years ago. I sit in an office chair all day long and don't have this problem. I can definitely link this to time spent in my Honda Odyssey.