I haven't been in one, but I can only imange the interior of the Cobalt is up to par with the rest of Chevy's lineup. LOL
But were not talking interior spiffyness here, bang for the buck is strictly how fast you go for the money. Now, if she had said bang for the buck in its class, that would be different, but she didnt qualify it. Right now, the Cobalt SS is a great deal if you want to go fast cheap, amongst new cars, anyway. My old Neon SRT-4 used to be the king of the bang for the buck, but Dodge dropped the ball a little in the shift over to the Caliber for the SRT-4.
Now, in the 2 door muscle car segment, the SS is indeed the best bang for the buck. Oh, and Lastson, last I read, the Z-28 was dead in the water, although I admit my information could be dated.