I think that t-tops are cool, but I'm not sure that they would look good on the challenger. How about a targa top? Dodge had a concept car called the yellow jacket in 1969. This design became the challenger in 1970. The yellow jacket had a targa top and I think that it looked really good. However, I have heard that Chrysler is working on a hardtop convertible in the next year or two for the challenger so I think that pretty much makes any debate on t-tops or targa tops mute.