Nissan's latest Nismo project ditches the purist's playbook: a gas engine powers electric motors that drive the rear wheels, leaving the combustion engine as pure generator. It's a technical flex that says more about regulation than engineering romance—and it works on paper, if not in spirit.

BMW's hybrid and EV lineup has made real strides in powertrain efficiency, but electrical gremlins and software quirks still plague owners. The i4 and X5 45e have solid fundamentals, but reliability data shows early-generation issues that newer model years are finally shaking. Build quality matters when you're spending six figures on something that hasn't been fully debugged.