Do they use the same equipment and plants that make Ferrari's to make Fiats? If not, then that wouldn't be true as they'd have to use more expensive equipment for Fiats than what they need.
Don't Maserati's also cost a lot of money like Ferrari's? Or can you get them the price of Fiats? Might point is more about what using weaker tech in plants does for them on low end than the high end. I assume Ferrari is a rip off financially supported by their branding.