I've been searching around everywhere and can't find any data regarding Model X range with 19" wheels. It appears if you take a 90D you gain around 35 miles range from 22" to 20". Essentially almost the equivalent of stepping up a battery size to 100D. I'm curious if you went down to a 19" or even an 18" could you muster our another 15 to 20 mile range? For those that aren't concerned about the vanity of larger wheels, this could be a cost effective way of increasing range further without having to both purchase and tow around larger batteries that you may not always use. Any thoughts?