Is a true 4K dash cam worth it over a 2K or interpolated model?

Specialist testers repeatedly flag that several popular "4K" cams use interpolated or software-enhanced resolution rather than a native 4K sensor. For most drivers the priority is reading license plates, which depends more on sensor quality (Sony STARVIS 2) and HDR than the headline resolution number. Reviewers consistently say a well-implemented 2K or genuine 4K front camera matters more than the marketing label.