Tesla's custom order page for Model S tells me "The included Mobile Connector can charge at a maximum of 40 amps, allowing up to 29 miles of range per hour."
The same page for Model X says, "The included Mobile Connector can charge at a maximum of 40 amps, allowing up to 25 miles of range per hour."
29 for the Model S, but only 25 for X? Why is that?