The ZB II SRT-10 Roadster is the open version of the last SRT-10 Viper: the same 8.4-litre, 600 hp / 560 lb-ft V10, the same Tremec TR6060 six-speed, and the same lack of any stability or traction control, with a folding roof in place of the coupe's fixed one. It runs 202 mph with the top up and about 197 mph with it down, and matches the coupe to 60 mph in roughly 3.6 seconds.
It was offered across all three model years (2008–2010) and closed out with 18 of the 50 2010 Final Edition cars wearing roadster bodywork. As with the rest of the generation, Dodge never broke out roadster-only production, so exact numbers are unpublished.
Mechanically it is the same car — 8.4 L, 600 hp / 560 lb-ft, Tremec TR6060, no traction control — with a folding roof instead of a fixed one. Top speed is 202 mph roof-up versus about 197 mph roof-down, and the open body is slightly less rigid.
Dodge never published roadster-only ZB II production. What is confirmed is that 18 of the 50 2010 SRT-10 Final Edition cars were roadsters.
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