GM's already axed the Chevy Impala SS, Cobalt SS Sedan, Pontiac G6 GXP, Cadillac STS-V. Confirmed dead now include HHR SS and Cobalt SS coupe. But the Camaro SS, CTS-V and ZR1 still live. [KickingTires]
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It looks like GM is replacing all the SSs with IOUs.