Because selling has better cash-flow properties than renting, and by selling GM can push some financing requirements into smaller and more dispersed entities.
Besides, a bigger market does not mean it's more lucrative. Competition on ride-sharing will probably be much more intense than on car manufacturing, and GM may be completely unable to succeed on that new market.
Besides, a bigger market does not mean it's more lucrative. Competition on ride-sharing will probably be much more intense than on car manufacturing, and GM may be completely unable to succeed on that new market.