All over the world and every sector of the economy, the continued acceptance of bitcoin for transaction purposes continues to happen. This influence depends largely on the environment the business is operating. I don't expect an entrepreneur to go and spend huge amount of money on having a POS machine, when the majority of those that patronize his business deals with cash and don't even have bank accounts.
The reason why it seems the businesses operating in the automobile industry in Nigeria are yet to fall in line is because even their clients have not fully harness the potential of blockchain where majority of their transactions is still being done through banks enable channels. In the future, it is expected that this will change depending on other factors that might either work for or against such penetration.