GTA V - Actual Fire Rate - Measured Fire Rate - Accurate Fire Rate

Actual fire-rate spreadsheet for Grand Theft Auto 5 Online. 

I did these testings while online, not in single player.
The Micro SMG fires around 10% faster in a car than on foot, while the machine pistol is actually slower when fired from the inside of a vehicle.

Who knows what the purpose of this was, probably just a R* dev screwing with us.