Looking at the recent US MP releases, though, they are getting better at not bastardizing them. Grimlock is, I think, the best version of that mold, and Hot Rod had a toy-accurate color scheme and even extra accessories to make up for his lost bits.
Grimlock was pretty nice, and I can appreciate the Skywarp, but other than that I'm not impressed. MP-1 was ruined by dirt and small stacks, his repaint was ruined by pastel and neon paint, Starscream was nice in theory but ruined by the dirt wash and black joints. Rodimus Prime? I love the Targetmaster but he lacks way too many paint apps to be called a Masterpiece. If I wanted to hold something toy accurate in my hands, I already have. He was designed specifically to look like Floro's show model, even down to the fake window crotch. To not take advantage of that defeats the purpose of his design. And the trailer and "4" modes is one of the things that made him very special too so he just isn't complete to me. Much as MP-10 won't be if he doesn't have his trailer. Just something special about having the whole package.
Course, we didn't even get MP-5 so no point in going there.
Since the smokestacks telescope, it might not matter for the U.S. release.
They never telescope down far enough, I don't think. In fact, they're more likely to break than MP-1 I would think due to being thinner at the top and having no lateral give. We'll see.