Smart wheel conversion for a German racers car - the claim is he is saving 3.2Kgs a wheel.
3.2 kilos per wheel is a very large saving indeed, Is this the combined wheel and tyre because a 16" 55 profile tyre is going to be lighter. I suspect this is compared to the wire wheels previously fitted? Compared to alloys I would find that very difficult to believe.
5 Stud alloys are much less bother to remove as well. Just a normal breaker bar with a socket is fine , no need for 20' extensions.
Agreed that the choice of tyres is much wider for 16" rims.