Are you suggesting that there will be new TDIs in 2025/2027? VW already announced they're no longer funding R&D. They're shifting their resources to BEVs. By 2025/2027 it's very likely that BEVs will retail for less than ICE.
???? In every TCO category Tesla trounces the competition. Lower Maintenance, lower depreciation, lower fuel cost... what else is there?
Study: Tesla Model S Holds Value Over 2X Better Than Average Gas Car
I actually WISH Teslas depreciated faster... I'd love to upgrade from a 7 y/o car to a 4 y/o car with w/o paying >$30k.
My 10 year TCO comparison would begin in 2015, for the stated 2015 Gen 3 TDI (in this case, a GSW 6M), and 2017 (which is, IIRC, the initial release of the Tesla Model 3), and end, respectively, in 2025 and 2027. Sorry if that was unclear, but I assumed it would make sense that a 10-year TCO would end ten years after the last Gen 3 TDI engine referenced.
Depreciation, as a factor of TCO, is useful to us not as a comparison between the Tesla and other EV's (this might be useful to other people), or as a comparison between the Tesla and gasoline cars, but as a factor of TCO between my 2015 TDI and a 2017 Model 3 at the 10 year mark. It's peachy that Tesla trounces the competition, but I was responding to your TCO comparison between a Model 3 and TDI. Sorry if that was unclear.
For readers who find this thread and are interested in EVs, from a financial perspective, their interest in TCO is likely to push their search beyond Tesla alone, which is why I tried to widen some considerations to EV's, rather than solely Tesla.
Since I'm not attracted to the Tesla, I don't follow them much, and appreciate the link you provided. The current depreciation rates are impressive, but I'm curious what they will look like as time passes. Obviously the biggest depreciation hit typically occurs in the first transition from "new" to "used." After that, however, depreciation is not necessarily linear, and condition, mileage, and typical marketplace factors will play a key role in value. Given that (about) 80+% of the cars are fairly new (5 years or less) and has attracted (what seems to be) an eager following, it is not surprising that current depreciation numbers are low- the cars are relatively new, in good shape, and most without time to accrue mileage, age, or concerns (real or imagined) over battery condition, and have a market waiting to buy them. I expect depreciation rates to climb as the marketplace responds to cars sold at the 10-year mark, but time will tell, and no crystal ball is required. It was also unclear to me if the iseecars study included the federal and state subsidies (provided to boost the marketplace or offset production costs) when arriving at the 17.1% figure for the Model S. The same page linked to another iseecars study that lists the 5-year depreciation for a Model S at 61.5%?
Perhaps you favor Tesla over other EV's, but other members at Fred's who like discussions of TCO and cost per mile might enjoy research that spans the range of EVs. I was reading the newest AAA study on cost of ownership, which is very favorable towards EVs in general. I don't love all their previous formulas (see my thread on TCO), but it's better than most. AAA found that at the 5 year mark (or 75k miles) the COO of a new compact EV was $600 higher that the gasser compact. I would think generalizations like this are difficult, given how widely the cost per mile varies based on location and driving requirements. Again, if you are a Tesla fan, this won't mean much to you, but for others, they may find it interesting when doing COO/TCO studies.
Again, the AAA EV compared to gasser study doesn't fall in to my parameters of interest too much. At my 10-year TCO comparison, AAA rated small gasoline sedans at $0.464 "total" cost per mile, where my TDI was at $0.227 total cost per mile. Total is in quotes since AAA's numbers are not true totals, whereas mine reflect every cost involved to go a mile.
AAA also doesn't make clear if/how government subsidies play into their calculations. It will be interesting to see how TCO is impacted as these subsidies go away, or as states raise fees on EV's to make up for lost revenue from fuel sales.