31. Ford Mustang Boss 351
In 1971, Mustang received another thorough restyle which would be the final one for the first generation. And once again, the car grew in size and weight. Also, it featured a new, sharper look with a much wider track. Unfortunately, the Boss 302 and Boss 429 versions were gone but the Grande and Mach I stayed, albeit with lower power ratings. However, there was one interesting model they introduced in 1971 and that was the Boss 351.
Offered for one year only, the ’71 Mustang Boss 351 was one of the rarest Mustangs they produced, making just 1,800. It was powered by a highly tuned version of the 351 V8 engine delivering around 330 HP. It was fast, attractive, and more expensive than the Mach 1 version of the same model year. So today, it is a true collector’s item.