In order to increase the power of the large coupe they bored out the cylinders and gave the crankshaft a longer stroke, which increased the displacement of the V-12 from 5.5 liters to 6.3. That makes it the most powerful street legal V-12 engine in the world.
They also gave the car new intake manifolds, larger turbos, a more efficient intercooler and a low backpressure exhaust system, which all meet current European emissions standards.
The final output with the five-speed automatic transmission is 730 horsepower. This results in a 0-62 mph time of 4.0 seconds and a limited top speed of 210 mph.
What does the “most powerful car” cost? $242,000
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