i have the little adjustable blind spot mirrors in the bottom outside edge of the mirrors and they work perfectly...no one is looking that closely at your car to say that doesn't look aesthetically pleasing anyway

they work dammit

If people are sneaking up in your blind spot you either need to:

A: get into the right lane.

B: get a faster car.

I have adjusted my mirrors as recomended earlier in this thread. I still find the passenger blind spot troublesome.

I just ordered this convex mirror https://www.amazon.com/Nissan-Heated.../dp/B06XRCLC87 I'll let you know if it helps