Designed by Lazzarini and enhanced by Hennessey, the 4C Definitiva does – at least in theory – what Maserati was not prepared to do: shoehorn a Ferrari-sourced V8 engine into the back of Alfa's nimble little sports car. The powerplant is borrowed from the Ferrari 458 Italia and tuned by Hennessey to produce a claimed 738 horsepower and 532 pound-feet of torque. In a package weighing just 2,100 pounds, that's said to be enough to propel Frankenstein's four-wheeled monster to 60 miles per hour in a scant 2.5 seconds and across the quarter-mile in 9.5 seconds at 137 mph. Those are LaFerrari levels of performance.
As you can see, the engine transplant calls for a widened rear track, and is accompanied by more aggressive aero as well. Of course, the design may be little more than an idea at the moment, but Lazzarini is apparently looking for customers to commission the first examples, at a reported price of 260,000 euros, which is about five times the going rate for a stock 4C and more than Ferrari gets for the 458 Speciale. Whether it's worth that much is one question. Whether Lazzarini and Hennessey could actually deliver on the promise is an even bigger one.