Updated: 15-May-2020
Male made a single cylinder engine that gave 18 hp with a displacement of 218 cc and was intended for ULM. The Mahle brand is best known for manufacturing pistons and rings.
From Appendix 10: They also made a 4 cylinder boxer engine with a displacement of 600 cc.
“Mahle boxer engine”
Engines of MAHLE
Model: 4 cyl. boxer
Arquitecture: 4-cylinder Horizontally opposed
Cooling:
Total Displacement: 600 cc
Bore / Stroke:
Power:
Weight:

"Mahle boxer engine"
Model: Single-cylinder, 18 hp
Arquitecture: Single-cylinder
Cooling:
Total Displacement: 218 cc
Bore / Stroke:
Power: 18 CV
Weight: