A fail. I got the manufacturer in 1, then went to others and came back to it for 5. My knowledge of the model names goes as far as Plus 4 and Plus 8 (and the Aero) so this 4/4 model name was new to me.
I got the manufacturer in 1, once I understood what I was looking at. I forgot about that model though, so all my guesses were different variations of the same 2 models. Slightly miffed when I don't know what the differences are externally.
In 1. I get what others are saying about all the models looking similar - I figured start with the base model and then go for one of the others if that didn't work