The "Caddy" in Second Life is called a Primouth Series 70. I'm a huge fan of the car and was able to do it justice with this program. Er - I hope so anyway
The "1949 Mercury" is a Primouth something, I haven't named it yet or finished it. It's about halfway done now. Both cars are almost completely built with sculpts. I use a few standard prims for some parts but that is becoming more and more rare. Major parts of the Merc are single sculpts. It works out perfect I get the curves I want with less prims so I can use those prims to do more detail work on the dashes, etc.