The Alfa interiors aren't as good as any German car, not even close. So there is one problem, they have performance but the Germans have that too. And the reliability worries I feel like are a huge obstacle. You almost know going in it will break so why buy it?
Alfa almost has to give these cars away for 5 years and prove they are reliable before masses will pay money for them.
They should be selling Alfa's at $400 a month for 72 months. I get that is $28k, but that is about what people are willing to risk on one of these. For a hot second Alfa was bragging how the Guilia was the fastest 4-door around the Nurburgring and the Stelvio was the fastest SUV, then Mercedes took both those away about a month later. So you are getting 2nd place performance with sub par interior and bottom of the barrel reliability. Not a recipe for success.