Eyebrows were raised when a photograph from the Rockies began circulating the interwebs. The rare shot shows a pair of delectable supercar test mules – the next-generation Pagani Zonda and the new Mercedes SL65 AMG Black Series – undergoing testing side-by-side on public roads. Aside the from the rare occurrence of a non-homologated Zonda on American tarmac, speculation began to ramp up as to what the two were doing together. Conclusion: they must be sharing the same engine.
The world's major sportscar-makers all have major parent companies behind them: Ferrari and Maserati have the Fiat Group while Lamborghini (and Bugatti) are under the VW/Audi umbrella. Pagani Automobili SpA, however, remains independent, but hooked up with Mercedes to provide the motivation in the heart-racing Zonda supercar. Not to worry, though, because by all accounts the V12 engine that AMG builds by hand for Pagani is an awesome powerplant. Its displacement and output have increased from si