One of the most recognizable muscle cars ever made is the Ford Mustang Fastback

from the 1968 model year. This is the model that made its mark in automotive 

Steve McQueen memorably drove it around the streets of San Francisco in Bullitt.

Many people believe that this classic muscle car's design can compete with 

However, in terms of performance, it falls short of contemporary muscle vehicles.

YouTuber Nate Rider has chosen to replace the engine in his old muscle car