Since the 200 mile-per-hour barrier was broken by the now mythical Ferrari F40, speeds have only continued to climb ever so higher. Manufacturers have been locked in a never ending race to produce better, faster and more powerful cars year in year out. And everytime, they never fail to astonish. Today, many high-end production cars either rivals or outperforms some of the most technologically advanced race cars. Here we look at some of the best performing production, circuit, diesel and electric cars in the world today.