The G70 came after both the G80 and G90. The G80 is the Genesis vehicle they led with. It was identical to the previous Genesis sedan. I turned mine in a year ago. Nothing has changed about the Genesis since they refreshed the second generation in 2013, which is why I noted that they felt stale.
Unfortunately, the sales don’t back up the idea that Genesis knows how to make a great car. I also was very ready to give mine back by lease end, given how many issues it was having. But I’m hoping the GV has more promise than the G sedans.