Volkswagen’s GTI has been a staple of those willing to tune their own cars for years. The ability to change the exhaust and update computer chips to provide additional horses is an industry all its own. But that may be a thing if the past if VW’s Design Vision GTI Concept ($TBA) is ever released. The car has 503 horses and a top speed of over 185 mph. This is all produced with a 3.0 liter twin-turbo V6 which gets you those 503 horses at 6500 rpms and 413 foot pounds of torque. Who are we kidding, if it’s every released someone’ll try and get 600 horses out of it.