Not one we’ve heard of before, but the seller of this Marden Microcar / Quadricycle seems to know a fair bit about them and explains just how rare this is….possibly totally unique!
From the seller: “This is a functional vehicle although it hasn’t run for 2-3 years. It would be very easy to run the car with a replacement barrel and key. Obviously the motorcycle battery will need charging.
This is a really rare microcar. There’s one at the Lane Motor Museum in Nashville Tennessee and another, rather battered 325cc diesel version cropped up on eBay a while back. Other than that, try and find one. If the Marden is interesting to well-known car collectors like Jeff Lane at the Lane Motor Museum in Nashville, Tennessee, then surely an original in very good unrestored condition should be of interest to other collectors.”