Get type in referenced assembly by supplying class name as string?
Maybe the referenced assembly isn't loaded at the time. Also, I understand from your question that you do not have the full type name, only the class name.
You should try something along this line then:
Type type = Assembly.Load("YourAssemblyName").GetTypes().First(t => t.Name == "ShortTypeName");
Hope I understood you correctly.
For the first question, you could do something like
Type t = AppDomain.CurrentDomain.GetAssemblies()
.Where(a => a.FullName == "MyFramework")
.SelectMany(a => a.GetTypes())
.FirstOrDefault(t => t.Name == "Car");
I am not sure what you mean by the second question.