if you are moving with an average 20Km/hr!!! i know no one drives a car this slow but i need this power for aboom lift!!
Not all vehicles are created equally, as I had hoped we all knew. So the answer depends on how heavy the car is, how big its engine is--like the number and displacement size of its cylinders--etc. You have to get a number of specific details before this question can be answered with much accuracy. Oh, wait. you're going to move it with a boom lift, right? Well then, in that case, the vehicle's own engine/transmission power won't come into play, but then you still have to know how much mass the vehicle has.
