This thread made me go do some digging, and I found that Idaho National Test Laboratory did some testing on EVs, including the Model S and the i3:
2014 BMW i3 Test:
https://avt.inel.gov/sites/default/files/pdf/fsev/fact5658bmwi32014.pdf
2014 Tesla Model S 85 Test:
https://avt.inl.gov/sites/default/files/pdf/fsev/fact4500tesla2014.pdf
What's really interesting about these tests is that they were done at a steady speed instead of the EPA testing which has a lot of acceleration and deceleration. When we are usually concerned about the edges of a range in a long range BEV, we're talking about steady speed so I've always felt that the EPA testing wasn't real world enough.
At a mere steady 45 mph, the Tesla Model S85 is more efficient than the i3, DC consumption rate of 193 Wh/mi versus 205 Wh/mi, or about 6% more efficient.
Mind you, the EPA 5 cycle highway ratings are 97 MPGe versus 111 MPGe.
Wow!
At 60 mph, the difference is bigger at 245 Wh/mi versus 273 Wh/mi. (11.4% more efficient)
At 70 mph, the difference is shrinks to 301 Wh/mi versus 313 Wh/mi. (4% more efficient)
Very strange, I would have thought the aerodynamics combined with the AC induction motor versus the hybrid permanent motor in the i3 and relatively poor aerodynamics would have caused a bigger difference at 70 mph than 60 mph.
I use the DC electricity consumption rate instead of the AC one to eliminate the charging efficiency. The Tesla wins there too.
Now, the 2013 Leaf is much worse:
https://avt.inl.gov/sites/default/files/pdf/fsev/fact2013nissanleaf.pdf
359 Wh/mi at 70 mph.
On board charger efficiency is also worse.
Quite interesting.
For what it's worth, I'm guessing the base Model 3 is listed as a 55 kWh pack with 54 kWh actual, 3 kWh anti-brick buffer, and 51 kWh available. That's 237 Wh/mi on the EPA testing. Also, another WAG, I'm thinking 70 kWh for the upper model, with 68 kWh actual, 3.5 kWh anti-brick buffer with 64.5 kWh available. I'm guessing that provides 255 miles of range (RWD). But the RWD version with that battery might not be available. AWD range is 260 miles. That means about 400 hp battery power in ludicrous mode and I'm guessing the 70 kWh battery pack weighs in at 395 kg or 871 lbs. That means 0-60 times probably around 3.1 seconds.
Edit: took into account the 0-60 calculator I used doesn't really do EVs