Vintage R&T Review: 1983 VW Quantum GL5 and Turbo-Diesel – VW Goes Upmarket

quantum top

The VW Quantum (Passat B2) received two new engines in 1983: the 2.2 L five borrowed directly from Audi, and the brand new (and first) turbo-diesel four. The GL5 model, which came loaded (for the times) and in automatic only, was clearly intended to position VW in a new category, up against the established premiun German brands. This was something new from VW; the beginning of their relentless upmarket push that would peak with their ill-fated Phaeton.

quantum 1 crop

R&T gets it wrong about the commonality between the Quantum/Passat (B2) and the Audi 80: “Today the two designs have little in common…”  I beg to differ. Except for a 10cm longer wheelbase on the Quantum/Passat, under their now different skins they were very much kissing cousins. And their sharing of engines (all EA827 family members) was just another aspect of that. A simple way of putting it was that the Quantum GL5 was a direct shot at the upper end of the Audi 4000 (80) and low end of the 5000 (100).

The 2.2 L five made 100hp and 90 lb.ft of torque. That makes an interesting comparison to the other new engine, the turbo-diesel four with 68 hp but a whopping 98 lb.ft. of torque. This was the beginning of the diesel golden age.

 

quantum 2

The Quantum’s excellent interior design is noted, a reflection of Germanic detail to every element. Handling was good, even better in rear-world driving than on the skid pad, which always tended to favor cars with stiff springs and thick sway bars.

 

quantum 3

Frankly, if offered the choice in 1983 between the automatic 2.2 L five and the 1.6 L turbo -diesel four teamed with the 5-0speed manual, I know which I’d have taken: the latter. My FIL bought an early gen1 Jetta with this engine, and I was mightily impressed, with its nice fat torque curve and decently smooth running. Yes, diesels can be fun to drive.

quantum 4

The Quantum was not exactly a big hit in the US. American buyers still thought of VW as cheap cars, and would rather have a premium brand for the money being asked. It was a problem that VW only recently gave up trying to fix, and decided that chasing Toyota made more sense.