WHY DOES MY CAR SHAKE WHEN IT REACHES 70 MPH ?
Could be a lot of things. Wheel balance is often an issue -- have tires balanced and alignment checked. Could also be loose tie rods, sway bar bushings, etc. Could just be the fact that it's a Neon, they drive a lot rougher than other small cars, not knocking them, just that they seem to have more vibration and road noise than similar vehicles.
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