You're confusing "multilink" and "multilink beam."

All the Nissan RWD and AWD cars of late (Silvia/180SX, Z32 300ZX, R32/R33/R34) all had the multilink rear suspension. This is a similar setup with no shared parts.

The current Maxima that came out in 2000 and the generation directly preceding it have a "multlink beam" rear suspension which is essentially a torsion bar.