Actually I got the minolta almost to 360 a little while after I took that pic. I really dont like the method for going really really fast, because I think its not very realistic -- but this is how you do it.
At about 260, you can make the GT cars pop wheelies with the propper suspension and downforce layout (because you cant fly, this puts alot more force on the rear tires). However you set it up, you want to make it so the suspension at high speeds is much lower in the back than in the front, giving your car lift. You can either force it by just setting the height to the max in the front and min in the back, or you can set both to max, and have very soft springs in the back so it gets sucked down at high speed. I use the second layout because it is better for grip. Then just set the downforce on the front to min, and the downforce on the back to max. Gear the car so it can go around 350, and make sure you have nitro set to max boost.
Its pretty rediculous because in real life, the car would start to fly, probably killing the driver when it came back down, but whatever.
At about 260, you can make the GT cars pop wheelies with the propper suspension and downforce layout (because you cant fly, this puts alot more force on the rear tires). However you set it up, you want to make it so the suspension at high speeds is much lower in the back than in the front, giving your car lift. You can either force it by just setting the height to the max in the front and min in the back, or you can set both to max, and have very soft springs in the back so it gets sucked down at high speed. I use the second layout because it is better for grip. Then just set the downforce on the front to min, and the downforce on the back to max. Gear the car so it can go around 350, and make sure you have nitro set to max boost.
Its pretty rediculous because in real life, the car would start to fly, probably killing the driver when it came back down, but whatever.