Greetings to the old-timer experts, when searching through my photo archive, I hit on some vehicles that I can’t match up with so far. Maybe someone knows the manufacturer and type of the following old-timers: 1. Apparently a historic racing car, seen at the Essen Motor Show 2011 2. A roadster with an air-kilted rear engine, probably a VW or Porsche Derivative 1 2 3 4 3. Could also be something based on Porsche: May Beetle Meeting 2013 4. There I am really full ig unsuspecting. Looks like an own construction for me: DIY 1 DIY 2 Thanks a lot in advance for all the information regarding these vehicles.