Rpms with manual shift at 70 mph

[Rod-Knox]

The final drive ratio determines engine rpm in high gear and while I am not familiar with the specific ratios of most cars I can say that in any given vehicle with various power train options smaller engines must operate at higher revs than larger engines at any given speed and often the larger engines are mated to automatics while the smaller engines are mated to manuals. And 2,500 rpms shouldn’t be annoying if the car has adequate sound insulation so possibly the manual transmissions are most often found on the basic version of the civic with the smallest engine and a bare minimum of insulation. Hopefully someone here is familiar with late model Civics and can be more specific in answering your question though.