Are there any examples of cars that use an opposed piston engine.? - Quora
Opposed piston engine developed 140 years ago | The Western Producer
Opposed Piston Engine
Under the skin: Why opposed-piston engines are returning to roads - Achates Power
Opposed Piston OPRE
A New 10.6L Two-Stroke Diesel Engine Has 3 Cylinders And 6 Pistons - Car Throttle - Achates Power
At Least One Automaker Plans to Produce an Opposed-Piston Engine
Energies | Free Full-Text | Numerical Investigation of the Effects of Split Injection Strategies on Combustion and Emission in an Opposed-Piston, Opposed-Cylinder (OPOC) Two-Stroke Diesel Engine
Pinnacle Engines Develops Efficient, Low-Emission Gasoline Engine Using Supercomputing – Oak Ridge Leadership Computing Facility
Opposed-piston engine - Wikipedia
Opposed Piston Opposed Cylinder Engine - YouTube
Opposed-piston engine - Wikipedia
Opposed-Piston Opposed-Cylinder Engine for Heavy-Duty Trucks | SpringerLink
Hybrid Opposite Piston Engine - HOPE & Portable Range Extender / State of the art
E-REX Is A 1-Stroke, Opposed-Piston Engine That Weighs Just 83 Pounds
Achates Power continues development of opposed-piston technology for US Army vehicles - Green Car Congress - Achates Power