In brief (on european market, without the USA and South African ones):
All original multivan has a rear rnr seat rear facing buddy seat and a fold up table. Usually they are 6 seaters (2+1+3). +1 extra rear facing seat behind the passenger seat was an option (2+2+3). In the early ones the buddy seats had a storage box, in the later ones fold up seat was an option on Magnum (just the extra or both) and default in Bluestar/Whitestar and Limited Last Edition (both fold up) As I know all Multivans are only LHD
The Caravelles are 7 to 9 seater in 3 row (2+2+3; 2+3+3; 3+3+3) but only the later Caravelle GL has rnr rear seat. Both LHD and RHD
Caravelle Carat is a 6 seater (2+2+2) with fold up table and invidual seats. The middle 2 are turnable backward, rear oneas are electric Passat seats, no rnr bed. LHD only
Check
http://vwpix.org/ for almost all the brochures.