First of all. Those of you with live, go to the time trials and go to long beach and check out the track Long Beach City and see who is 9th
This trick will get your porche 959 too 400mph + without hacking.
First of all get your porche in manual, and go along the road in Gear 1 then once you are at full speed in gear 1 let go of the acellorator and turn left for half a second once you have turned 90 degrees left or so shift down and hold the acceloroator, your car should be spining in circles like bonkers. Next (must do this step pretty fast) you must shift up and shift down (B Then X) and once you have shifted down keep tapping the right trigger (accelorator) and then after 2 seconds or so your speedomotor should flick. once it flicks hold left again untill you are in control and going the right direction. Once you are on a long straight push the B button for a super boost which will send your car in super acceloration and you will go 400 mph +. I reccomend trying this on a track like Long beach city or a track with loads of straights that you can wallride on. You can only do this with a porche 959
Once you get the hang of it, its pretty easy.
Let me know how you guys do.