These are awesome.
They look like they belong to the Superkings remake in 2005(?).
I think Mattel decided releasing only Muscle Cars in this remake range.
Maybe jim is able to give us some more information.
There were some nice convertibles and a few with 'vinyl' roofes in this range and their are not often seen, at least here in Germany I think.
I found one model of a 1971 Dodge Challenger, the box says it's limited on 20 500 pieces, which may explain why I have not seen that many of them.
Here is a link to the model I'am referring to. (should not be any advertisement, just an example)
http://uedata.amazon.com/Matchbox-Super ... B0030K7JBK
Greetings,
Linus