LHD= left hand drive, Left-hand drive vehicle, seen in the direction of travel
RHD= right hand drive,Right-hand drive vehicle, seen in the direction of travel
It is well known that part of the world's population still drives cars with the steering wheel "on the wrong side". In cars that are otherwise identical, this sometimes leads to technical differences. Most of it fits, but not everything. Sometimes the starter is on the other side of an English patient because it would otherwise get in the way of the pedals, some English models have a hydraulic clutch, where it is operated via a Bowden cable in the brother from the continent.