I'm shopping for a used Tesla MS and narrowed it down to either 2015 85D or 2016 75D as I prefer the facelift for its looks. On Tesla's used inventory I see some 75D's having a 0-60 time of 5.2 secs with 259 mile range and other 75D's with 0-60 time of 5.5 secs and 234 mile range. I'm curious what the difference is between the two and how come the ones that are quicker also provide a longer range. Can anyone shed some light on this?