The Lamborghini Countach was already on the Turbo #6 candy wrapper. But this Lambo is so cool that it was placed on several liners at once! Turbo insert #19 features the most powerful Lamborghini Countach 5000 QV. Its 5.2-liter V12 with four valves per cylinder develops 455 hp. With. and will allow you to develop 295 km/h and accelerate to hundreds in 4.7 seconds. Actually, the abbreviation QV stands for Quattrovalve (four valves). Lamborghini Countach 5000 QV is the most popular modification of the model. Of the 2,049 Countachs, over 1,200 are �four-valve� Lambos. The huge wing distinguishes the Countach from the 80s