QUOTE (KarmaInferno @ Sep 30 2010, 04:19 PM)

Except that "function" could refer to actual drone functionality, or to the rules themselves, as in "the rules function like this".
Again I'm not saying ya'lls interpretation of "what the rules intend" is wrong. Just that the text needs errata to clarify.
-k
You still haven't shown anything that supports the statement "A biodrone is a drone."
QUOTE ("SR4A Pg 244")
Drones are devices, and like all devices each has its own node in the Matrix.
QUOTE ("SR4A Pg 245")
Drones, vehicles, and some other (semi-)autonomous devices have a special System program called a Pilot program.
QUOTE ("SR4A Pg 245")
When observing its (physical) surroundings, a drone uses its Sensor rating.
QUOTE ("SR4A Pg 245")
Drone Initiative equals Pilot rating + Response, and they receive two extra Initiative Passes.
None of those sentences describing drones describe a biodrone (with the exception of the first, potentially).
Further....
QUOTE ("SR4A Pg 244")
Nearly any kind of vehicle--matchbox-sized cars, miniature rotorcraft, ground patrol vehicles the size of a large dog, even modified sports cars--may serve as drones.
That sentence clearly states that a drone is a vehicle. If we go back to the Combat section about Vehicle attributes we can determine which attributes are necessary for something to be a vehicle.
Condition Monitor- Vehicles do not suffer from Stun damage.
Handling Rating- Every vehicle has a Handling rating.
Sensors- Sensors are the vehicular equivalent of the Intuition attribute.
Acceleration- Vehicles have an Acceleration rating that determines their movement rates.
Speed- Speed is the reasonable high-end maximum velocity of the vehicle.
Do biodrones have all these qualities? No, they have none of those qualities.
Biodrones are not vehicles. Since biodrones are not vehicles they cannot be drones. Since they are not drones or vehicles they do not qualify for vehicle modification rules.