6. TVR Speed 12
The British sports car company TVR was known for producing a series of capable coupes and power roadsters but never a proper supercar. In the late ’90s, the company’s management decided to present the ultimate version of their popular Cerebra coupe called Speed 12.
The Speed 12 was a brutal and extremely powerful supercar, practically a race car for the street. It had a 7.7-liter V12 engine with around 1000 HP, but the exact number was never published. The car was designed primarily for racing, but its racing career was short and not very successful due to the changing of rules.