This is cool: Size comparison between the first generation A7r and the new A7rV
Sony A7rV store links:
In US at BHphoto, Amazon, Adorama, FocusCamera, BeachCamera, Buydig.
In EU at Fotokoch, Amazon EU, FotoErhardt, Calumet DE, WexUK. ParkCameras UK.
In Australia at CameraPro, Camerahouse, Sony.
The Japanese website Champcamera compared the very first A7r (announced in late 2013) and the brand new A7rV. Five generation of cameras after the “r” series really did grow a lot in size.