What are the advantages of a rear mounted engine? What are the disadvantages of a mid engine? Porsche famously uses rear engines. Engine placement plays a big role in the dynamics of a vehicle, affecting weight distribution, moment of inertia, launch traction, acceleration traction, passenger space, and efficiency depending on the driven wheels used. Rear engine cars typically have the weight distribution rear-biased, meaning a high moment of inertia and tendency to oversteer, but typically great braking.
Front Engine Cars - http://youtu.be/5p4NiX4A8hw
Mid Engine Cars - http://youtu.be/M_ZVf6KfqiY