IIRC ABS was optional starting the 1984 model year. Memory seats and an airbag were optional for 85.

The ABS system on the Gen2 cars is the same.

The only cars with 4 speed sensors are the gassers with ASR. Even the diesels with ASD just have a single sensor on the diff. (it just compared rear axle speed to front wheel speed)

-J

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1991 350SDL. 230,000 miles (new motor @ 150,000). Blown head gasket

Tesla Model 3. 205,000 miles. Been to 48 states!
Past: A fleet of VW TDIs.... including a V10,a Dieselgate Passat, and 2 ECOdiesels.
2014 Cadillac ELR
2013 Fiat 500E.