The businesses say planning discussions on jointly-designed automobiles will begin instantly and embody automobiles powered by each electrical energy and inner combustion engines. Engineering work would start early subsequent yr.
Honda and GM say in an announcement Thursday that they will additionally cooperate on buying, analysis and linked providers.
The memorandum of understanding between the businesses is not binding.
However the transfer is one other signal of accelerating consolidation within the automotive enterprise as corporations face big capital outlays to develop present merchandise in addition to new electrical and autonomous automobiles.