Obviously Power to Weight Ratio plays a good role in deciding the final out come. Power-to-weight ratio, in fact, is the real measurement of actual performance of any engine. If we apply the following equation:
We will get the following Power to weight ratio figures:
So that still shows that FIAT scores here. Now you have to consider another aspect here - Torque! If you look at the spec, you can see that FIAT engine is the best power plant again, producing maximum torque at the lowest RPM.
PowerToWeight Ration = (Power in K.W) / (Weight in K.G) * 1000
Where
Power in K.W = Power in P.S * 0 .74
Where
Power in K.W = Power in P.S * 0 .74

So that still shows that FIAT scores here. Now you have to consider another aspect here - Torque! If you look at the spec, you can see that FIAT engine is the best power plant again, producing maximum torque at the lowest RPM.