At Musikmesse 2016, Markus Resch of Mellotron.com was showing a complete line of modern Mellotron keyboards.
In this video, Resch demonstrates the digital Mellotrons, including the Mellotron M4000D, M4000D Mini and M4000D Rack; and also takes a look inside a tape Mellotron.
via Ralph Baumgartl
What about the smallest one? That’s not even in their website and looks nice (an cheaper)
The smallest Mellotron is the Micro Mellotron. According too Markus Resch it will be available in June for around 950.- Euros.