I plan to test drive a bunch of new EV models to determine who might have a chance to be top 3 or top 5 in 2030 and 2035 based upon how far behind their tech is today from Tesla.
Investing is a non-intuitive endeavor for most people. People have a tendency to do what worked last time because they think they are "learning". I would suggest to avoid this trap. You were an early investor in Tesla, perhaps because the cars were amazing to drive. That's good. The way the Model 3 drove was a major factor in my confidence in Tesla during the dark days of late 2018 through the first half of 2019.
But I would suggest that using the same process to try to determine the winners looking forward 5 or 10 years will not be as successful. It will not be revealed by which car is the most amazing to drive (they will likely all drive well and have different strong points and so personal preference and value offered will rule the day). Elon has made it abundantly clear the manufacture is the difficult part, that anyone can make a good car, the difficulty is in mass producing them at a favorable cost in high volume.
As an investor you are concerned with much more than how the cars drive, they will all likely be very similar in ways that matter to most buyers. Driving the cars will not tell you which one will last the longest, have the lowest warranty expense or cost the least to make. Some makers will be forced to price their cars below cost just to be able to sell enough to be viable. If they are priced too high, they sell even fewer and the cost to make each car rises as well. In any case, waiting for the cars to actually be produced will probably be later than ideal for investment purposes.
My point here is don't necessarily keep doing what worked last time, because you don't know why it worked. As investors we don't live long enough to learn long-term investing from experience. You can improve slowly over time by using past investment experience as a guide but you won't become an expert this way until long after you are dead. You can learn to day-trade from experience because it's possible to trade every day or multiple times/day to build enough personal experience to become an expert at it. But you cannot learn long-term investing through the same process. It's not going to happen on any meaningful scale. You need to parse different information to become a good long-term investor and study past examples and even have a good grasp of how the world works outside of investing. Apply first principles thinking to investing. Know that most of what you think is wrong. Ignore 90% of the stuff out there that most people think is important investment info and focus on the bigger picture, longer trends, and less specific info. Sometimes detailed data can help you see the bigger picture but it should only be used to generally inform, not to base investment thesis on. There is no certainty in investing, you have to use your knowledge of how the world works to see into the future and use an early and accurate understanding of how the broader trends unfold with time. And it comes down in the end to risk/reward ratio. You need to win bigger and win more than you lose.
Most data on this shows most people would be better off throwing darts at a stock board or simply buying S&P Index funds. I think most people are capable of doing much better than the statistics show because the statistics include people making a lot of stupid decisions, people who are not focused on what matters in the longer term. These are people who base their investment decisions on things they think are important. Price ratios, earnings, etc. Sure, at some point those things need to fall in line for your investment thesis to be proven correct but those are not metrics the most profitable investors use to form their early discovery of value in the market or their early discovery of problems with a previously successful company.
I will suggest the next Tesla is likely Tesla. If my thesis changes it won't be because I saw it in the sales data, it will be because I saw the company change in ways I don't like. Maybe a change in management that I don't think will be as effective, maybe a shift in the way the public is starting to view the company or a shift in transportation itself. Likewise, it probably won't be because I drove the latest model Tesla and didn't like the way it drove compared to the competition. I suppose that is possible, but very unlikely.
Tesla's big advantage is battery supply and manufacturing/corporate efficiency, things that competitors cannot quickly copy. That's why TSLA is a screaming buy for the long-term. Their manufacturing efficiency is on display on multiple fronts including their technological lead in EV drivetrains which allows them to build the same car with fewer batteries. That makes the car lighter and cheaper. Also, the manufacture itself is more efficient due to relentless application of first principles thinking, removing unnecessary steps wherever possible and making other steps more efficient. This is one area that traditional manufacturers are quite good at - the only problem is the manufacture of EV's is much different from the manufacture of ICE and thus has different optimizations. Because traditional OEM's are not nimble, it takes them
forever to apply the necessary optimizations to all the new processes. That's why we can openly discuss it without worry!
On the other front, Tesla's corporate efficiency benefits from the same first-principles thinking as that used in their manufacturing, as well as lack of historical corporate baggage.
As an investor, if you want to take early action as competitors improve, you don't want to base your actions on the final product because it might be too late. You want to watch how the competition is changing, what processes they are employing, how they are progressing with reducing corporate overhead, how they are dealing with the baggage of their dealerships, how public perception is changing. I would suggest it might be a long time before Tesla has competitors than offer similar value.