The PlayStation was notorious for texture warp, because it didn't have the transistor budget to implement perspective: Why do 3D models on the PlayStation 1 “wobble” so much?
But wait a minute. The Super Nintendo implements perspective in mode 7, and that's a previous generation machine. Play a game like Mario Kart and you can see perspective being implemented perfectly.
A comment on Where did Sony's 3D graphics hardware in the PS1 originate? reminded me of this:
Sony invested quite a few years into this, and their GPU is very simple. Given that it discards perspective, the work of filling each polygon scan line is really little beyond the work the SNES does for each line of the display in Mode 7.
... Little beyond? It looks to me like it is significantly less, as the SNES did implement perspective. Now to be sure, the SNES only did this for a single background layer, not for arbitrary triangles, but within that context, didn't it do more than the PS1?
What am I missing?