It is interesting to reflect on this post. In 2002 a 4000 Continuation Series Cobra in aluminum was about $55K to $60K, a 7000 Series cost more do to the more labor intensive body. Today a similar 6000 Series Continuation Cobra, but not built by SAI, is $200K in aluminum for a roller. Sale prices of completed 4000 Series aluminum Cobras have hit $395K.