To clarify, it's not an option when ordering the car, but if you really want a 72A charger in your 75D you can pay a service center to install one. It's expensive though, as you're wasting the charger the car comes with. As a practical matter there's really not much use for the 72A charger in the US in a car with the smaller battery. I just finished a 4460 mile trip in my S60 (40A charger) and there wasn't one time when I would have benefited from having a higher amp charger. That trip used 35 supercharger stops, 5 HPWCs, 2 J1772s, and 2 120V outlets.