Following the previous shot alongside the Mercedes SL65 Black test mule in Colorado, the developmental next-generation Pagani Zonda has shown up again in the lenses of spy photographers right here in the good old U.S. of A. The undisguised test mule of the upcoming AMG-powered supercar has sent the online automotive community scrounging for speculation over the nature of the new Zonda, and we'll throw our ten-gallon hat into the ring.

The test mule is all but completely undisguised, giving us what's being touted as an accurate look at the second iteration of the Zonda. The front airdam is slightly enlarged, the flanks resculpted and there are some new vents added to the rear. There'll likely be a transparent engine cover to give onlookers a good view of the engine – be it the SLR's supercharged V8, the SL65 Black's twin-turbo V12 or another power plant entirely – however, the decklid window was taped over to prevent prying eyes from getting a premature glimpse. By and large this Zonda test mule, which reportedly carried a Zonda F badge, looks like the model it will replace, leaving us to wonder if Horracio Pagani might not be playing a little game with us, putting slightly revised body panels from the existing model onto the test mule to throw us off from a more radical restyling when the second-generation Zonda – if indeed it will even be called that – is finally unveiled about a year from now.

[Source: CarZi and World Car Fans]