I think we have different ideas of what is consider the "same". Pepsi of old had no blue. BP's log is nothing like the old in terms of shape, nor color tonality. It was heavy green w/some yellow. Now its mostly white, with some yellow, surrounded by green. The font is changed. The color of the BP is changed.
They all change for "a reason"!
I concede on Honda - was thinking of something else I believe. I believe it was Datsun now that I think about it. So long ago.
At some point, you can say, well, the old and new both have "logos", so they are still the same.
The point of this OPs post though is a simple refresh, not baby / bathwater toss.