FD is the model name for the 3rd gen RX-7
4WD means power is transmitted to all 4 wheels of the car
RWD means power is only transmitted to the rear wheels
FWD means power is only transmitted to the front wheels.
FR refers to a front engined, RWD layout. F for front, which
denotes the engine's location in a car, and R for the drivetrain
configuration
hence, FF means front engined, FWD.
MR means mid engined, RWD.
RR means rear engined, RWD
a car is said to be front engined if the engine sits ahead of the
front axle.
if the engine is between the front and rear axles, it is said to be
mid engined.
if the engine sits behind the rear axle, it is rear engined.
some basics. feel free to ask for specific clearance on anything u
wish to know.