Hypersecretion - Too much of any hormone secreted into the body is usually caused by a secretory pituitary gland tumor. Secretory tumors produce too much prolactin (the hormone that triggers milk production in new mothers), which leads to infertility, discharge from breasts and menstrual abnormality.
Roadster uses about 230Wh/mile at 55mph, we know that Model S 85kWh battery should last 300 miles at 55mph. That gives us 283Wh/mile. Difference is 53Wh. Roadster uses about 330Wh/mile at 75mph, so Model S should use 383Wh/mile at 75mph. 85kWh/383Wh/mile = 222 miles. Estimation, but should not be far from truth.
My S is a little more than 2 years old and I have 84,000 miles on the original battery. Since Tesla uses 12,500 miles as a nominal year i think of my car as 7 Tesla years old. My total loss is about 13% from when the battery was new. That is a rough number because several software upgrades have resulted in changes in the range calculation. Today full charge gives me 235 miles and 90% charge is 213 miles.