Audi engine pallets – quo vadis?

Hello Audi driver, just now I found out in the Audi configurator that both the A3 Sportback and the A4 Avant have large holes in the engine pallets. I can no longer find the 170hp diesel at all, the 1.8 TFSI only in a 160hp version on the A4. Just like the 1.4 T(F)SI in the A3 with only 125 instead of 140 or 170hp. All engines in all possible power classes, whether petrol or diesel, are however available in the corresponding VW vehicles, yes even the Audi driver. i Skoda! Is there currently a change or what is Audi doing for a mischief? Perhaps WA here, who can explain this? Gr, Mac