The Desira was developed by Stefan Gloger and is steered by a “joystick”. It is a twicycle, and a lot of information is available here.
This early vehicle is the “Veleric”. A lot of vehicles were built, but only a few were sold.
In the twenties, there were a lot of velomobiles, that were imitating cars. This one is an ancient vehicle, a velocar:
The perspirator is a velomobile from finland with eiectric assist.
Here is a site with pictures from the “Eco-trip” in 1998: http://www.abo.fi/~agustavs/echo/
The “Trelo” was a product apparently delivered by the German mail order company “Otto”. But only a few were sold.