DiRT just looks and plays beautiful. One of the best racing games to be made on the 360.
In DiRT, you can select many modes such as Career, Championship and Single Play. In Single Play you get modes such as Time Trail and the usual. In Championship mode, you do many races and see if you can reach the top lead. However, the best mode in my opinion is the Career. In career you work your way up a pyramid chart and try to become the best. You buy new vehicles and new paintjobs and basically race till you reach the top. The more races you compete in, the more money you earn and the more cars you can buy.
DiRT just really delivers great visuals along with great gameplay. The scenery looks stunning and lifelike. Definately one of the best racing games to come out on the 360 so far.