10 Fastest Production Cars

Photo by titi22110

4. 9ff GT9-R

Top Speed: 260 mph

The 9ff GT9-R is based loosely on the Porsche 911, but aside from the looks, it is a whole other beast. Built by German tuning company 9ff, founded by Jan Fatthauer, the GT9-R is an extensively rebuilt Porsche 911 GT3. Fitted with a heavily modified 4.0 litre flat 6 that produces 1,120 horsepower. It was designed to take the speed record for a street legal car, with a claimed speed of 260 mph. It does 0 to 60 in 2.9 seconds and 0 to 190 in under 16 seconds. The interior was stripped out for lightness, and has blue leather, square patterned trim, with a roll cage for safety. Only 20 GT9-R models were built with the largest engine, making them very rare.