Just when you thought Porsche couldn't squeeze any more power out of the naturally aspirated GT3 line they go ahead an shoehorn in the largest displacement motor ever in a production 911, a monster 4.0L flat 6 cylinder derived from the racing 911 GT3 RSR. That beast of a motor features forged pistons, titanium rods, and the same crank as the racecar. All that adds up to a crazy 500HP and 339TQ naturally aspirated!
With the help of carbon fiber, the car weighs just 2,998lbs and can scoot to 60mph in just 3.8 seconds on it's way to a top speed of 193mph. The only transmission available will be a 6 speed manual and just 600 examples of the RS 4.0 will be built at a cost of $185,000.