Despite having little interest in the sport in real life or any other game within the genre, I always feel it's necessary to have a football game. In my case, it's Pro Evolution Soccer 6. Several years old by now, but it still gets dragged out every so often as a nice break from the plastic guitars.
I also completely fail to see the point in racing games as a whole, but particularly the car-based kind - I don't drive in real life, hence I have no interest in cars, so why would I want to play a video game based on them? I can, however, see the entertainment in the less realistic ones. Mario Kart has always been entertaining. Also, despite being sort of car-based, Burnout 3 was a lot of fun as a spectacle - who doesn't love watching cars get mangled?