les voitures ont des chevaux et aussi les chevaux fiscaux
(totally unrelated ad-parody)
Diesel engines have long been favoured by French fiscal horsepower calculations. The German formula applied a higher tax horse-power factor to two stroke engine cars than to four stroke engined cars based on the fact each cylinder in a two stroke engine fires (has a power stroke) every revolution where an otto cycle or 4 stroke cylinder only fires every second revolution. In 1933 the Hitler government came into power and identified promotion of the auto-industry as key to economic recovery: new cars purchased after April 1933 were no longer burdened by an annual car tax charge ^^^funny, it looks like the new plan to tax morer and morest old cars and give handouts for the rich to buy expensive (electric) cars