No. A different chassis does not give the car a more smooth feeling unless it comes from a car that is generally smooth. It also doesnt become faster than the car of the chassis it originates from. For example, an s15 with a viper chassis will obviously be quicker than a stock s15 but wont be as quick as a viper. Likehas been said above, more factors come into play. Then you should know it obviously doesnt necessarily make your car instantly smoother or give it an advantage. It just depends on what chassis you put on.