There is definitely a theme amongst some of the ardent Tesla critics that if Tesla can't make a profit on a $80-100k car, how can they make the Model 3 at a profit? I believe that is the central crux of their bear thesis these days. And there is definitely cause for alarm. On top of that, some Tesla suppliers/contractors and ex-suppliers/contractors have chimed in to cast Tesla in a negative light. I get that Tesla's manufacturing operation probably looks terrible compared to a highly efficient Toyota operation. The major automakers are cost optimizing down to pennies. Hence GM is willing to kill people over $0.57. To the bears, it is case closed that Tesla cannot make the Model 3 at a profit and therefore they will hit a brick wall - the more Model 3's they make, the more money they lose and hence they hasten their bankruptcy. BMW can then pick them up for pennies on the dollar.
However, when it comes to BEVs, the conventional wisdom is not accurate.
First, I acknowledge that Tesla's manufacturing operation is probably the worst run as compared to the likes of Toyota, Nissan, BMW, etc. However, that doesn't ensure that Tesla can't make money on the Model 3. There are very highly cost optimized supply chains for the ICE powertrain. These do not exist on the BEV side. The production of battery cells, the battery pack integration, the production of the motors, the power electronics like the inverters and the chargers, the various new systems electronics and so forth are not made in high volume. In many cases, Tesla is actually the volume leader of these critical and high cost components.
If 25-30% of your COGS is wrapped up in the battery pack cost, and Tesla can make that component for almost 35% cheaper than the next best manufacturer, we're talking lots of room to be bad at other things. Let's look at battery cost. GM's ex-chief engineer of the Volt, Jon Bereisa, estimates that the Bolt's battery pack costs $215/kWh, or $12,900 for 60 kWh. While he probably has great insight on GM's costs, he has terrible understanding of Tesla's costs and Tesla IR person calls in to correct him on Tesla's current battery costs. Likely Tesla's current costs are around $185/kWh at the pack level and the Model 3's pack level cost is aimed at $150/kWh. Therefore, with a 55 kWh battery, the Model 3 pack cost is more like $8,250, a $4,650 cost differential on mid $30k vehicles. And that's just the battery.
The Model 3 is likely to have a longer real world highway range than the Bolt even with a substantially smaller battery pack. The efficiency gain is in the design.
Another illustration... the Clipper Creek EVSE's are well known, well thought of J1772 charging stations. The Tesla HPWC likely has a very large share of the EVSE market, but at what extent we don't know. We do know that Tesla charged $1,295 for the HPWC and it is capable of 80A. Clipper Creek charges over $2,000, but likely the volume of that product is small. But Tesla lowered the price of the HPWC twice... it is now $550 for the long cord model. Clipper Creek charges $565 for their 32A model. This is where Tesla is wringing the costs out of the EV supply chain, leveraging their higher volume and scale.
If we go through each component of a long range BEV drivetrain, it is likely that Tesla's version has both higher specifications and lower cost. So maybe Tesla isn't able to get the best seats at the best price. Or the highest quality leather at the cheapest price. But the BEV drivetrain, power electronics and media electronics which likely dominates 50-65% of the COGS is where Tesla is likely the highest volume and the lowest cost. If they can wring a cost advantage of $6,000 to $7,500 out of that part of the COGS, they have a lot of slop in the rest of the car where other automakers likely have an advantage.
As for overall profit, right now the company is carrying very high fixed costs spread over a pretty small sales volume. The Model 3 fundamentally changes that.