all of them are RWD
as long as they are both removed from a fwd. or a rwd will fir a rwd. but not a fwd to a rwd
All viper's are rwd
It is not the engine that determine if it is FWD or RWD it is the transmission and how it is designed. You could take an engine out of a FWD vehicle and install it in a RWD vehicle if you had the skill and money to do so.
FWD Front wheel drive
Front Wheel Drive. ( FWD ).
FWD the front wheels drive the car RWD the rear do and for different FWD more control in breaking where the weight goes forward and RWD faster take off
front wheel drive (FWD)