The engine cost per km would then be:

Ford: 14640 / 1500 = 9,76 €/km (exchange rate 0,88)
Skoda: 11000 / 1100 = 10 €/km (avarage of 10000-12000 & 1000-1200)
Peugeot: 4900 / 650 = 7,54 €/km