The station wagon was dropped from the Bonneville line this year, but an LE model joined the base and Brougham four door sedans. The base engine was a 3.8 liter V6 with three speed automatic.  A 5.0 gas V8 or 5.7 liter diesel V8 were optional with either 3, or 4 speed transmission. The Bonneville’s … Continue reading 1984 Pontiac Bonneville Manufacturer Promo