The value of product increments being delivered is estimable, and once estimated (whether as ROI, cost of delay, or some other measure), its value can be prioritized. In Scrum, this is known as working from a prioritized product backlog. Agile can be used to create high quality products.
No wonder then that the C-Class, one of the most affordable Mercedes models, is the best-selling luxury car in America. A range of turbocharged 4-cylinder, 6-cylinder, and 8-cylinder engines are available; the latter are reserved for the AMG performance-tuned versions of the car.
It's clearly not designed to be a luxury car, but that doesn't change the fact that Mercedes-Benz is a luxury brand. The company has earned that reputation by consistently producing high-quality, good-looking cars that have compelling features. The same is true of Audi, Lexus and others. Remove the Audi rings from an A6 or the three-pointed star from an E-Class and you still have a luxury car. What about the opposite side of the same coin?