Definitely not, at least in systems where both the engine and motor-generator mechanically connect. You only reduce complexity when it's basically just an EV where the ICE can recharge the battery, such as the Chevy Volt or Mazda's new rotary engine vehicle.
> There are interesting insights with the reliability of electrified models this year. Overall, hybrids have 26 percent fewer problems than cars powered by internal combustion engines (ICE). Some standouts include the Lexus UX and NX Hybrid and the Toyota Camry Hybrid, Highlander Hybrid, and RAV4 Hybrid.
> Plug-in hybrid electric vehicles (PHEVs) are more of a mixed bag. As a category, they have 146 percent more problems than ICE vehicles. Several PHEVs are even less reliable than their conventional counterparts, such as the below-average Audi Q5 and Chrysler Pacifica. The latter has the lowest score in our survey, at 14.
> Electric cars and electric SUVs don’t fare much better, with average reliability scores of 44 and 43, respectively. At the bottom of our vehicle-type rankings are electric pickup trucks, with an average score of 30.
