When the first PHEVs and EVs made their shy debut in the automotive world and infiltrated in the US markets, skeptics said - among other things - maintenance costs are one major drawback.
To be perfectly honest, they were right. But that's only a natural thing since a more complex and new powertrain will require a more specialized service process.
This was one of the reasons why potential buyers adopted a reluctant attitude when it came to buying a plug-in hybrid. But as technology evolved, and the green movement gained momentum, repair costs went down slowly, but steadily.
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