swift gt

[limer]

hey guys,

when i'm booking it with my swift gt (thats about 120 to 140 km/h) on the freeway. the car tends to sway. its kinda like she has a mind of her own and the car is hard to control. i just aligned the car and got brand new bridgestone potenza tires. any ideas on what the problem is. I did smack a curb a few weeks back and i put the front right rim in the back and the back rim in the front which stopped the shaking. any ideas on what it may be will be appreciated

cheers