According to the official Tesla Range Calculator turning on the AC affects the 85D way more than the 71D. At 70 mph, 19" wheels, AC off and an Outside Temperature of 90 degrees 70D's rage is rated at 240 mi, 85D's is 274 mi. 34 mi difference. Turning on the AC brings the difference down to 15 miles (229 to 244). Screenshots. Any ideas why that would be the case?