Goodness. An engine built by the bastion of vehicular reliability, which is likely to run very hot, is always on high levels of turbo boost and RPM, and which is driving 4 wheels. What could possibly go wrong?
One minor defect, design weakness, or materials quality issue in the cooling system and kaboom. That's what.
This will be Fiat's EcoBoost moment. Let's hope that they at least treat customers better than Ford do. Mind you, slinging faeces at people is better than how Ford treats those stupid enough to give them money. I talk from very painful experience!