Realistic Car Racing Games

It is a funny thing trying to figure out what is better, a car racing game that is more based on reality, or the arcade racer with blinding speed and unrealistic physics.  For me I have always liked both, I played my fair share of burnout titles which I love, but I also have a soft spot for the Gran Turismo series which we all know is incredibly realisitic.  The PS2 had quite a few great racing game series to grace its system over the years.  My memoy card messed up and erased itself a couple years ago, and I nearly cried over losing all my work I had put into the Gran Turismo 3.  To this day I have yet to play the game again.