Maybe three different pack capacities. 55 kWh, 70 kWh and 80 kWh with inconel contactors and programmable fuses. But could be that they have two versions of the larger capacity pack, one with Ludicrous and one without. Battery packs are the easiest thing to swap around, so I don't think this will add a production challenge.
I'd think more like 55 kWh
(software limited, all useable), 70 kWh, and 90 kWh --
or -- 55 kWh, 75 kWh, and 100 kWh would be available battery pack capacities. That way you don't end up with those narrow 10 kWh gaps between trim levels. A 20 kWh for the first step, as it was with Model S 40 to Model S 60; and a 25 kWh second step, similar to Model S 60 to Model S 85; would be sufficient to fit my preference. The highest capacity battery pack would only be available on the Performance version of the car, and yes, that would only be a dual motor configuration. That way, most people would be satisfied to get
'enough' capacity for their needs. I firmly believe a 75 kWh battery pack would do that, whether single or dual motor.
To those who intimate the Model ☰ chassis is too small to accommodate 100 kWh capacity? I say they are wrong. I've said it for years, I'll keep saying it. I fully expect to see something like a Tesla Model ☰
P135D Coupe with Falcon Wing Doors some day. So there! But until that arrives, I'll be perfectly happy with the
P90D or
P100D versions, thank you very much!
I'm assuming the RWD versions are limited by the drive units, not the battery pack. At a restrained 4C, the 55 kWh pack could output 220 kW, the 70 kWh pack could output 280 kW and the 80 kWh pack could output 320 kW. All three options would be equally capable of supplying the assumed 200 kW rear DU with power, the larger packs are just heavier. (I don't think Tesla would advertize that the larger capacity packs would be slower, though. They'd just say all three were 5.8 seconds.)
I trust that JB Straubel has not been sitting on his hands since 2012. I expect that the battery management system, power control system, and power inverters for the Model ☰ will be vastly superior to what appeared on the Model S P85 Signature. So will the motors attached to them. I believe that to JB, as well as Elon Musk, the term
'Tesla Generation III' actually means something substantial. Not incremental, not marginal, but a fundamental, generational shift in technology. As such, I am not willing to accept notions that lean toward an expectation the Model ☰ will be in any way inferior to the Model S they released nearly five years ago.
220 kW is 295 HP. I say that is kind of low. Because, if it is a software limited 55 kWh battery pack of an actual 70 kWh to 75 kWh capacity, there will be more voltage available for use. 280 kW is 375 HP. 320 kW is 429 HP. I would target the BMW 340i with the base version of the Model ☰. I know, a lot of people think it is
'enough' to just make it past the parameters of the 180 HP BMW 320i. I say that would just send people to the Toyota dealership to get a Camry instead. Because even with the quick PUSH of torque off the line in the first 1.3 seconds, the Model ☰ would not be properly compelling if it were gimped in base form relative to Performance. Thus, something suitably over 300 HP should be the baseline minimum standard bearer for Tesla. I figure 330 HP is a nice round number, so 246 kW would work great as a rear wheel drive motor standard. I'd hope that would allow an official 0-60 MPH of 5.4 seconds, but a test result from third parties of consistently 4.9 to 5.2 seconds instead.
Once you add another ~200 kW drive unit at the front, then you are limited by the battery, and the larger packs will increase performance. Adding performance would increase it still, and Ludicrous would bring the 0-60 down to around 2.6 seconds.
I'd go ahead and use a 225 kW, ~302 HP capable motor at both front and back of the
'regular' dual motor all wheel drive cars, whether the battery was 55 kWh or 75 kWh. Some people would call it a 604 HP car. Let them.
And the top-of-the-line Performance car would get the 320 kW, 429 HP motor at the rear, with the 225 kW, ~302 HP motor at the front. Why? To draw a line firmly in the asphalt to announce the AGE of EVs had arrived. Some would call it a 731 HP car. Let them. All anyone would really care about was the 0-to-60 MPH runs in 2.4 seconds, 1/4 mile time of 9.8 seconds at 145 MPH trap speed, and top speed of 186 MPH in an electric car with a highway range somewhere around 340-to-378 miles. Yup.