first of all i would like to say that i own a canadian car

over 120KM/H the stearing wheel starts shaking
at 160 KM/H its unbarable

what could it be
wheel barings?
alingment?
bent or missed ballences rim?

let me no if this happens on you car 2

 

bad tie rod end
bad tires

 

The neon is sensitive to balance. Have your wheels rebalanced to the nearest 1/8 ouce instead of 1/4 ounce.