ASELSAN and Temsa has ev buses on the roads.
Many Turkish bus companies like Otokar ,karsan and Anadolu Isuzu have many vehicles on the European roads with ev technology for years
For batteries, aspilsan company is working to have totally domestic automobile batteries.
Ford Otosan and togg have huge investments to produce batteries near their factories,but they are with foreign tech support
I asked a SPECIFIC question & you had no SPECIFIC answer to it. Let me explain how does the Military Industrial Complex ( MIC) operate. Maybe then you'd understand where I'm going with my narrative.
For organizations that develop the engine to power your tanks & the power train that goes along with it, the requirements are the industrial depth to either perform R&D followed by mass production & the ability to finance these ventures or to get a partner who comes up with either one or both of the pre requisites mentioned. Clearly these companies you've mentioned in this as well as previous posts have the industrial depth but it's not enough to engineer the kind of items asked for & it certainly can't finance them.
Enter the government to finance the venture & facilitate R&D thru tie ups with friendly countries, incentivising scientists from Turkey settled abroad or European scientists either employed or retired from the MIC in their respective countries to join in Turkey's endeavor to develop such engines, etc.
Then the Government of Turkey puts together a project & funds them. That's one part of the equation. The second part of the equation is to get it right, develop the entire product, equip your armed forces with it & canvas for exports. The last bit is the third part of the equation as up until date all such activities are funded by the state.
For this venture to be profitable, it has to be subsidised thru exports or through commercial exploitation of the technology . There're no other alternative. This is where the situation gets murky as Turkey would then be up competing with global giants already set since long in this field with great geo political clout & plenty of money in the bank.
Arms exports are as much about its own intrinsic quality which is usually an extension of the trust enjoyed ( as symbolised by other products produced ) by that country which in a manner of speaking is a matter of reputation or the brand equity of Turkey as much as it is about the price tag but more than that all such arms dealing is also about political clout.
Now Turkey enjoys a neutral reputation in this field which is to say that it's neither bad nor good as far as quality goes. Yet as far as political clout goes how would Turkey fare in a competition involving say France or China ( let's leave aside traditional arms exporters like the USA & Russia) .
The latter is an interesting case for it's been in the market for long & is today mfg cutting edge military equipment yet how many 4th Gen / 4.5 Gen Fighter Aircrafts has China exported? Let's leave aside it's sole customer in this regard - Pakistan. If Pakistan had the money & less nuisance value it'd be importing from the West not China.
Till date China still enjoys a reputation for mfg cheap products & it's exports mostly comprises of trainer aircrafts at the high end & at the most, but is more well known for its drones, small arms, few APCs, Tanks etc which is usually procured by countries looking for something cheap & can compromise on quality for a whole host of reasons.
Hence for a nation like Turkey to constantly sustain such an MIC it has to have significant usage of such equipment on its own & / or it has to have partners who can put up cash as well as contribute in terms of technology & work sharing. Otherwise the entire burden of sustaining such a MIC falls on the state which is another way of saying it's the taxpayer who bears the brunt of it.
Is Turkey in a financial position to sustain such a MIC given it's present economic condition & that in the near term future? If the answer to that one is a yes, then we'd have to see if Turkey can manage to develop such cutting edge technology on it's own / or with outside consultancy.
This is important as geo political equations dictate that your policy aligns with that of the major powers of the day for them to give you access to the kind of technology you're looking for.
China with it's huge market is still a pariah as far as collaboration in defence technology goes for the West. Can Turkey which isn't exactly on the best of terms with the West strike a better bargain. Assuming the answer is yes, who exactly is going to buy your product for the West can sabotage these deals thru sanctions too ? Think about where Russia is today in this regard while coming up with an answer. I've already given you the example of China