It certainly seems that 3D printing is becoming a bigger and bigger player within the manufacturing sector, each day that passes. Recently Koenigsegg, announced their new super car, the One:1, which they claim is the fastest production car ever produced.

http://3dprint.com/1357/worlds-faste...-exhaust-tips/

They were able to help get the weight down, meaning faster speeds, with the help of 3D printing. The exhaust tip of the car is 3d printed from titanium, and is the largest piece ever printed out of the material.