The 3.8 struggled to poop out 110 HP. Yep, 110 HP. Your off the lot new Toyota Corolla will knock the snot out of a stock 3.8 G body every time. I know, I have both versions the 3.8 Buick and 3.8 Chevy engines. (Well, I think the Chevy 229 put out 115 HP big deal.)
Still, for cars of their weight the 3.8's in good condition have adequate performance for driving around. They are not drag racers, no G body ever was in stock form, not even early ones with 350's struggling to fart out 150 HP. Driving around town normally and on the highway, I'm not holding up traffic or anything, and the engines perform so smoothly I hardly notice I'm even driving, they put me to sleep. They are not exciting, but many RWD 3.8's are still out there running. Stock for stock, part for part, the Buick 3.8 was one of the strongest blocks GM offered up in a car. They were used in Indy racing, turbocharged, supercharged, delivered many pizzas, and have endured for three decades in both RWD and FWD forms.
Acceleration: 0-60 in 20 minutes
Top speed: Buries the 85 MPH speedo in my G bodies LOL!
-UT-