The Model 3 and Model X got range increases of 20 - 30 miles this week, I think related to use of Tesla's heat-pump/octavalve.
This is an efficiency improvement and not more battery capacity. It will come into play in winter when heating related losses have been most evident.
Model X LR+ now 371 miles
Model 3 SR+ now 263 miles
Model 3 LR/AWD now 353 miles
The increased EPA range is hard to understand at first blush since summer range is +/- unchanged. It occurs because Tesla uses the full 5 cycle EPA protocol which includes cold weather testing rather than the 2 cycle with a steep discount for untested conditions. My estimate is that the Model 3 LR/AWD now has 300 miles of all season* range at 65 - 70 mph.
Outstanding achievement. Oh yeah, and the Model 3 LR dropped in price too.
* Winnipeg and the artic respectfully excluded
2013 LEAF 'S' Model with QC & rear-view camera
Bought Jan 2017 from N. California
Two years in Colorado, now in NM
03/18: 58 Ahr, 28k miles
11/18: 56.16 Ahr, 30k miles
09/20: 54.3 Ahr; 38k miles
2018 Tesla Model 3 LR, Delivered 6/2018