As fast as you can drive it in reverse.
4.1 
315 km/h
315 km/h
Lamborghini Gallardo:199 mph,Lamborghini Murcielago:208 mph,Lamborghini Reventon;210 mph
500 milimeters per day
202 mphThe Lamborghini Gallardo has a top speed of 192 to 202 depending on the model.
about 250mph but its not as fast as the mucelago roadster with a 850hp v12 engine it can go up to about 300
The most powerful model can get there in 3.4 seconds.
There are various 2011 Lamborghini models. They are: Gallardo LP560-4, which can go around 202mph and Aventador LP700-4, which can go about 217mph
The Lamborghini Gallardo has a top speed of 192 to 202 depending on the model.
250mph and above?