Continuous, maximum, or what are you looking for? There is no way to give you a number, since there are so many variables that go into amp draw calculations. Here are just a few of those variables:
-resistance of battery
-driving style
-terrain (drag)
-tire size/weight
SH Z-Car, Custom Crawler, 8s Savage, 12s XTM XLB 1/7 buggy, 4wd 4-link rear/IFS Pro4 truck, Custom Hyper 10 Short Course, Belt-Drive Mammoth ST 1/8 truggy, 4s 17.5 MM Pro HPI Blitz
Its really hard to say (as said) but if you are looking to get the right batts for it, I would plan on 70A (ie a 20C 3700 6S pack.) You may be able to get away w/ a smaller batt, but IDK, nor does anyone until you run it. I wouldn't go under a 3200 pack.
In a buggy I don't see it drawing any more than that under "normal" circumstances