Interesting this thing with the cars that suck, they can be great modellingsubjects some times. To me it seems that most cars from the early 80s suck. I think that as a global fenomenon. cars started to suck somewhere in the 70s and in many ways they still have not stopped sucking. Ofcoursce there are many great cars aswell but things like the Cadillac Cimmaron, wich to us in Europe is a lot better known as the Opel Ascona or Vauxhall Cavalier in the UK. The first two generations of the Ascona was RWD, not spectacular cars but quite good looking and was relatively succesfull in rallying. In manyways a bit like the first two generations of the Ford Escort (the european Escort that is).
The third generation Ascona was based on the GM J body. I don't know much about the cars you got in the states on that platform but as Ascona it was never a bad car. They worked and did run well. You could even get go-faster versions like 2.0i or if you did not care for speed but wanted your car to be noisy and slow you could have a 1.6 Diesel. But as a car, it is so boring and ugly. Looking at it, you get depressed and want to kill your self. They all where hearingaidbeige with rusty spots around the wheelwells. Like this 81 for sale right now: http://www.finn.no/finn/car/used/object?finnkode=54137427
When I was 18, these cars where the norm for 18 year olds to buy. Several of my friends had Ascona C, or Kadett E or other 80s Opels or Fords and quite a lot of Volvos. The Volvo is possibly the only car from that time that I don't think of as a car that suck so much but ofcourse, the 240 is 40 years old this year and was based on the 140 that was launched in 1967...well before the global-car-sucking started.
In the older times, cars where great and designed in a way that showed the world what a spectacular thing this was but I think that at some point cars stopped being a great thing and ended up being throwaway appliances that are almost excusing themself for being here. You see it clearly in the car adverts, I remember seeing car adverts from the 60s (like for the first Mustang) and it made you want the car but today the adverts are showing cars as something that is just there and sometimes they try and claim that you have to buy it because it will save the world or something like that.
Having said this, I like models of sucky cars. I could easily buy the Cititation if I come over it at a good price. I got quite a lot of sucky car kits, even the 2010 Prius from Fujimi. So ugly you need to wear weldinggoggles to look at it.