67 dart conv.

According to my info, they made 947 273 4bbl. 4 speed GT's. both hardtop and convertible. If you look at the percentage of hardtops vs. convertibles, it's around 10:1. that would put the total of convertible GT 273 4bbl 4 speeds at under 100 units built. That's just a ballpark figure. Actual sales may be different.