aqarwaen :
has anyone here teardown any car completel,to find out what kind electronics modem car contains.
or so you know any such kind youtube teardowns??
A modern car contains many dozens of processors and sensors ranging from powerful ones similar to those in smartphones down to very simple 8 bit units. The actual processors themselves are embedded units soldered to a PCB, which in the case of many of them, sealed inside of plastic or metal cases inside the engine bay and connected to sensors using bunches of wiring harnesses. The only "modifications" that can be done would be software flashes for the ECU/PCM and infotainment system- you cannot actually modify the hardware as that would be physically very difficult (requires BGA desoldering and soldering) and you would have to modify the proprietary closed-source firmware, which for many of the smaller controllers is on a fixed ROM. That and messing with much of it is illegal according to the feds as well, especially anything to do with airbags, mileage, or emissions.
If you are just curious what your car has, go get something like a Chilton manual and flip to the electrical section.
If you want to actually learn about car electronics, go take an automotive technology course at the local vo-tech college. You can also look at the documentation for a well documented, simple EFI setup for an offroad engine such as a larger lawnmower with an EFI gasoline engine (such as a Kohler Command EFI engine) to get a general idea of how a typical automotive electronic control system works.