Hi everyone, I used to have the top of the range is 300 aero sports which I absouly loved! and it was totalled in a accident. Iv now bought another is300 but a sportcross. Is the suspension on the two cars the same because I feel it's not, the sportcross likes the jump around on the motorway at speeds over 100 mph but my aero used to stick to the ground Evan at 140 mph