As someone pointed out, they are actually not the same size. I was mentioning the grooves being part of the "everything needs to look bigger and meaner in USA". As part of the whole marketing strategy that still goes on to this day. E.g. In kirby game covers in the US he looks angry.
There's several videos on getting it to run on windows 10 on youtube, however I think the best way to play NFS Porsche is on an old computer. And a CRT monitor.
I played the same platforms in worms for ages, before getting Worms World Party on PC.