Because of its powerful 429 cubic inch V8 engine, the 1969 Ford Mustang 

 Boss 429 is regarded as one of the most iconic muscle cars of all time. 

In addition, the unique version of Ford's pony car had more aggressive design

guarantee that the car's handling qualities would match its brilliance in a straight line.

Ford was not thrilled with the dynamics of having a big V8 sticking out in front of the car,

even with the modifications. In an attempt to improve its cornering capabilities