Then it wouldn't be any faster than a WRX from a roll. AWD is both a benefit and a detriment. AWD has more paracitic loss through the drivetrain. When you have to split your power up across 4 wheels a lot more is lost in regards to power AT THE WHEELS. It does however make it almost unstoppable from a dig with anything less than an exotic super car- most of the times even they can't keep up in a short jaunt from a dig.
It's proven the MS3 is faster from a roll than a WRX but that isn't necessarily true with the EVO and STi. These cars are trapping over 115mph in the 1/4.