Reading a Road & Track article today and they directly compared the chassis tuning of the Cobalt SS turbo to the MS3 and they found it to be superior. Now I have not driven either (ridden in an MS3 though) but I have to say that looks wise and fit and finish, the MS3 has the Cobalt beat. But overall, the new Cobalt SS turbo will give the MS3 a GREAT run for it's money especially in sedan form. The interior is quite livable and the motor is beyond proven. If the chassis is as special as they say, there will be some interesting comparos in the future.