I'm the author of this website/article, and I have an important update. I added this Epilogue to the website tonight:
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I created this website two days ago, and during that time, have witnessed 100s of comments on Hacker News, TMC, Twitter, and more. In the middle of all that, electriclove on Hacker News found an important bug in the model: The Ody PV line was adding in fuel costs from another car. (This, IMHO, highlights how valuable the Internet is for discourse and fact checking.)
I updated the model and the result is as follows:
- Tesla Model S: $40,151
- Honda Odyssey: $37,235
The end result is greater parity between the depreciation and cash flow models; and the edge goes to the Honda Odyssey by $3K, or about $375/yr over eight years. If I had more time, I might try to quantify the value of the safety edge for the Tesla (Travis calculated this to be about $500/yr), HOV lane access, or other features. In the meantime, I double-checked the formulas on the other cars - they appear to be correct. However, I continue to invite folks to continue to look at and provide feedback on the model.
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I created this website two days ago, and during that time, have witnessed 100s of comments on Hacker News, TMC, Twitter, and more. In the middle of all that, electriclove on Hacker News found an important bug in the model: The Ody PV line was adding in fuel costs from another car. (This, IMHO, highlights how valuable the Internet is for discourse and fact checking.)
I updated the model and the result is as follows: - Tesla Model S: $40,151 - Honda Odyssey: $37,235
The end result is greater parity between the depreciation and cash flow models; and the edge goes to the Honda Odyssey by $3K, or about $375/yr over eight years. If I had more time, I might try to quantify the value of the safety edge for the Tesla (Travis calculated this to be about $500/yr), HOV lane access, or other features. In the meantime, I double-checked the formulas on the other cars - they appear to be correct. However, I continue to invite folks to continue to look at and provide feedback on the model.