French engine is so bad that UAE took MTU engine for their Leclerc tank.
Ukraine and Russia, non has 1500hp engine, thats why they dont use much protection. also the size of engine is bigger to German ones.
USA use jet engine that use 4 times more fuel, and high heat signature.
only Germany developed 1500hp engine with transmission in the world so far with high reliability...
But i think, as Turkey is going to test its 1000hp engine with Transmission and 1500hp engine this year, it will be soled after loosing years thanks to Germans...
i think batteries might not be suitable with tanks as after every shoot it shakes a lot... also putting them under also means it will be damaged after any mine explosion. Also hybrid is the way to go, it has high tork from 0 that super important for tanks.. also fuel economy and silent operations with batteries only in case of need...
The French MBT engine is probably suited to a certain climate and not so much for the dry and hot climates often observed in the UAE or neighbouring countries.
Both the Ukraine and Russia offer 1500 hp or more powerful MBT engines.
KMDB design bureau of Ukraine offers the 6TD-3 diesel engine. Turkish authorities have expressed interest in that engine, too.
The latest Russian MBT T-14 Armata is powered by a (theoretical) 2,000 hp engine. Of course, operating at 2,000 hp would mean the life of the engine would be shortened.
The AVDS-1790 engine, also able to generate 1500 hp, offered by L3 Harris in the United States and originally developed by Continental Motors, is not exactly a novelty. It has been used in quite a few armoured vehicles and howitzers, too.
I suspect the Chinese, too, would have developed land vehicle engines able to generate 1500 hp. Perhaps, the Chinese brand name, or "Made in China" label would not be as highly reputable as some other well established brands from other countries and perhaps, there is a good and justifiable reason for that, too.
However, there is no mythical or mysterious knowledge or expertise required to develop and/or manufacture 1,500 hp engines for land vehicles or transmissions for the same.
Internal combustion engines are old technologies. More than a century old, those technologies have been mastered by numerous European countries (or countries where their descendants are numerous) and subsequently, acquired by East Asian countries, too.