Well, obviously a plain old torsion bar suspension is never going to be as sophisticated nor as well-controlled as a proper multi-link rear setup, but for all that the basic versions of the Golf seem to drive just fine. The ride quality will be noticeably more firm, but the 1.6 TDI doesn’t have the power nor grunt to seriously upset things, so under most driving conditions the difference is pretty minimal. You’d only notice it if you’re thrashing the car on a seriously bad road.