[asianflava]

This is an SUV not a car so I don't know what kind of ride you are expecting. The best way to get rid of body roll is with swaybars; springs, tires, and shocks help but aren't as effective. The problem is finding a manufacturer. If you know where to find aftermarket swaybars then go ahead and get them.

If people claim that they are getting seasick, your shocks may be worn out. If you compress your suspension does it bounce back once then stop? Or does it bounce a couple times before it stops. If it bounces a couple times then the shocks are worn out.

Otherwise, I'd suggest getting a car. The Scion tC has the engine and used ones are pretty reasonable.