Acthung Panzer presents a good survey on all armored veichle produced by Germans during WWII. It contains also foreign veichle captured by German and pressed into service with official designation, prototype and paper panzer (paper means that they never left the design phase) and focus on most capable Panzer aces. For people that want to talk about these things there is also a forum section.
Panzer V Panther prototype from MAN named VK3002(DB)