as the title mentioned. last year when i bought the game i got in to is so quickly that i made it to darius in just 5hours. but i quited because i can't beat him. now i'm trying once again after 1year.. my Car is Fully Upgraded McLaren SLR.

I never did beat him using a McLaren. The easiest thing to do is to buy a Corvette, fully upgrade it, put trans and engine towards top speed. You should be able to pass him at the first corner. Then hold him off for ten second and you win. It sounds easier than it is.
Good Luck!

i beat him using McLaren. i overtook him on the 58% on the 1st leg. and hold him of for 10secs. instead of using Grip Tuning. i made my McLaren Drift Tuning. made easier when drifting on a long curve.

Good for you, sorry I wasn't any help. If you have any other questions, I am one of the better guys online. Not the best but top 100. I think I still hold some #1 times on certain tracks. Ask away if you need to.