I must say that more often than not it was the owner and driver of the "new" Bonneville that became my nightmare. As a service manager at a Pontiac/GMC dealership from 1996-1999 the Bonneville was my personal demo of choice which gave me common ground with the BV owners. Now I drove them because the sound system in the SSEI was just absolutely rockin', the supercharged motor would get me down the highway to a meeting in amazing speed, and the body was classy but didn't make me look like an insurance salesman. So for my personal use these cars were a dream.
They only became a thorn in my side when one would pass the door of my service department with a person that had lost all touch with reality and no longer understood elementry mechanics.
Like the fact that a machine will make noise, they will use petroleum, they do ride on wheels, and no matter how great they are, sometimes they have problems. Sure you might be smirking thinking "Yeah, whatever dude." but when it is 110 degrees outside and your new car breaks down or the a/c wont cool, we all become stupid to some degree. Sure I was there to help in those situations but as they came through the door I might as well have been doin their wife, drinkin their whisky and taking their jobs the way they wanted to chew on my ***. Now I am a patient man and could ride most of it but I think I remember almost all of the actual problems the vehicles that came through my shop while I was either dispatching, writing service, or managing the shop.
Dang, I always ramble way too much, sorry. All I really wanted to say is that if my memory doesn't slip anymore, hopefully I can contribute something helpful.