Well I went off to cruise the highway, hit 130 mph after a race with a gt. Then the car was shaking hard!! I got all scared and let off. What could make the car shake like that? It has a poly trans mount, could that make the car shake like that?

 

I think it's usually the driveshaft, although you might want to have your tires balanced to see if that is your prob. Mine does it at 110 MPH

 

It probably got cold from the wind.Cover her up.lol