The Felber Autoroller T 400 was a three-wheeled microcar with a rear-mounted 398 cc Rotax two cylinder opposed twin, two stroke 15 metric horsepower (11 kW) engine.

[1] A. Felber & Co were a well known manufacturer of motorcycle sidecars, based in Vienna, Austria.

The company also moved into the sale and distribution of cars from Heinkel, Trojan, Spatz[1] and Reliant.

About twelve rolling chassis were delivered to specialist coachbuilding company Hofmann & Moldrich in Vienna who built upon them an egg shaped body out of 0.8mm aluminium plate called Möve 101.

[2] Two surviving Felbers are to be seen in the RRR scooter and microcar museum in Eggenburg, Austria.