i have a superb II 1.9 tdi in line it gives 175 kmh

And where did you test that??

And where did you test that??

in the circuit of estoril but the car only gives 200 km/h is electronic limited to that speed, the 1.9 tdi 105 hp

My car does 163mph (260kmph) on the limiter, apparently

Does 155mph (248kmph) all day long on the flat without the help of hills though.

I discovered mine was aerodynamically limited to about 130mph or 210km/h at Brunters, although the run was slightly uphill...