ive finished Carbon, but i have the normal edition, and it annoys me that im missing out on the CCX :-(
i finished with a Maxed out Murcielago, which i managed to get up to 253 mph on the motorway ( :D ), and a 1969 dodge charger.
i started with the Camaro SS, and used the mix of oversteer and speedbreaker to beat the muscle car boss.
the last dude you race is Darius, and the final canyon duel with him is VERY difficult, but if you use the handbrake around the hairpins it helps.
maxing out cars on need for speed and seeing how fast you can get them :D