Had to replace:
Both mufflers
Clutch
Alternator
+ lots of other stuff I do not now remember.
Your mechanic will love it - he'll pay off the house sooner.
Also caution this type of cars attract cops!
Anyway, performance wise really powerful. Handling is good. Fat tires make it unpredictable on snow, you really need to know how to handle it in the winter.
Before 160K had to change EVERYTHING on it: both mufflers, clutch, starter, alternator some other stuff I do not remember now.
The car was eating oil and gas like crazy. Probably 1L of oil a week and 20L/100 km for mileage.
Had to sell it at a loss, could not afford that beauty.
That's very ODD. I'm not aware of any 95 Lumina with a 3.4 twin DOHC. They stopped using that engine in the Lumina after 94. It went to the Monte Carlo &? until 97 when they stopped using twin DOHC altogether. From 95 on they used 3.1 & the 3.8 in the Lumina.