I will be honest with you, I am an engineer and former tank gunner-driver. I want to work on tank development so I am thinking to apply some defense companies but I must prove them have knowledge and new ideas. You can call me panzer fanboy but I picked Leopard 2 to work on (fairly modern, wide use and capable to install new systems) and begin to research, then found this forum (far best english forum about tanks that I could ever find) and said to myself "Wow those guys have both passion and and knowledge, this forum will definitely help to my research." and yes, it helped a lot but it's not enough. Answer to your question is every little detail of that cat.