Interesting question, and this caused me to go back and analyze my own ownership history. While I've only even owned my gas cars I've both leased and owned my EVs, which begs the question: which was better?
The EV I owned was a Tesla Model 3 Dual motor, purchased new shortly after they started rolling off the line. It needed very little maintenance over the years, though I did go through rubber every 20k miles like clockwork. I sold it at a little over 5 years old with 84k miles on it- the control arms were starting to make noise and the battery had degraded significantly, so I punted it rather than invest. The car had a 57,180k sales price (including all taxes, fees, California CVRP) minus incentives (7.5k back on the early federal EV rebate program). I spent money maintaining it, registering it, etc, and I finally sold it 62 months later for just over 20k. Total cost to own 43k including financing but excluding "fuel" and insurance. If I spread that cost out over my ownership the car was effectively depreciating at 26% per year: MSRP (54,000) x (0.74 (retained value per year) ^ 5.17 (years)) = 11k. Minus the 54k msrp = the 43k I spent owning the car.
I'm not sure what to call that number, but I spent 26.4% of the car's value per year owing it.
The reason for all that math is because I can easily compare with the cars our household has leased. For example my first EV was a 2014 Fiat 500e, $87 per month. Add registration, tires (none), return fee, down payment, etc and I spent $4k over 3 years owning that car. MSRP 32k, effective cost per year just 4.4% of MSRP. Analyzed this way, in order of date acquired, I get:
Fiat 500e: 4.4%
Tesla Model 3 Dual Motor: 26.4%
Ioniq 5 Dual Motor: 14.7%
Audi E-tron GT: 9.6.%
Tesla Model Y: 14.4%
Audi SQ8 E-tron: 8.9%
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Now there are lots of variables here. There's no correction for miles (the Model 3 had the most), interest rate variability with time, etc. Cars that are poor value new (like the 500e or E-tron GT with high MSRPs) get an artificial boost. And all of these deals change- you can lease an Ioniq 5 now for much less than I did a few years ago. But in my case leasing has beat buying handily. Owning the Tesla longer would probably have improved the score, but then again maintenance was kicking up and it had a
long way to go to catch any of the other cars, let alone the best ones. And I'd have been dealing with ever decreasing range best case...
I actually think buying and holding the Tesla Model 3 when I did worked out well- like the gravity it was at the cutting edge, so unlike say the 500e it was valuable and relevant (to me) five years after new. Assuming the worst doesn't happen to Lucid I expect the Gravity can be similarly valuable and relevant to owners half a decade or a decade from now. I'm still not sure that option will beat competitive leases that are currently available (for how long?) on a cost basis, however.