Power/weight ratio is the most important of straight line speed figures. Because it's the most relevant to track performance. And track performance is what indicates which car is really faster. Not top speed, power or acceleration.
you should say that when comparing estimated figures, here we have real life tested figures
same day test, both have the same engine/gearbox the A1 is 125kg heavier but 4 seconds faster at the track 1 second faster at 160km/h
now why the P/w R points should be against the A1? especially when the Polo is slower in every way?