Auwais,
there's a host of downloads for FIFA 2003 to enhance the game; kits, all graphics, balls, adboards, editors to change tactics, line-ups, in game strategies, add new teams etc. Chau Le has even been drafted in by EA to make an updated Creation Centre, although I haven't tried it out yet. The gameplay can also be improved by d/l some of the gameplay patches, although it still has that 'scripted' feel to it. Check out FIFA2003.com.
Sonic, I agree about CMR 2. A great game, the cars handle really realistically ( differently for different surfaces), the graphics are great, and I like the way that the car gradually deteriorates as you catch trees, fences etc (wingmirrors hang off, rear screen cracks, one back light won't work etc). I used to have a Seat Cordoba, so guess what car I use? You can also d/l new skins for the cars from various websites.
The option to race against the other cars is good fun too.