Your imprecision on stating power figures is annoying.
New VW sourced 2.0 TDI engine:
Steve Cropley - "173 bhp"
Autocar(anon, above) - "172 bhp"
VW(official - it is their engine) - 170 PS(125 KW, 167.67 hp) (1 PS = 0.98632 hp)
Almost 6hp is significant, but it's the accuracy point that's most important.
- of course, S Cropley and Autocar maybe right, assuming Skoda have independently engineered an increase in the power output of their stock, brand-new VW-sourced engine, or perhaps the air is denser in Mladá Boleslav than Wolfsburg!