Yes, the B5 chassis Passat (98-2005) was Torsen based, which is not as fuel efficient as a Haldex system. The B5 also has a longitudinal engine placement.
Slapshot - your 2000 PAssat 4Mo is also a V6; a 30V fuel swiller. 2004/05 had the 4Mo available with the 1.8T as well. Hencem the...