As I ve said in Wikipedia Talk WikiProject Automobiles Conventions converting PS values to hp would be even more confusing As an example let s look at the MG ZR 160 A british car should use bhp right Wrong The 160 bhp are actually the PS value 118 kW which would be 158 hp but even in the UK what is actually PS gets called bhp Now let s take a look at the Dodge Viper SRT 10 Advertised as 500 hp 373 kW In Europe this would be 507 PS but Chrysler actually keeps the original 500 hp value here without correcting the kW which in Europe would be 368 Now let s see the Mercedes C 320 160 kW which are 218 PS in Europe and 215 hp in the USA Finally let s see the Volkswagen Golf GTI Mk IV Advertised hp is 180 hp both in Europe and the USA Strangely the VW USA website tells us the car has 132 kW which is 180 PS but 177 hp So my proposal is to retain the original PS values for all European and Japanese models except for engines models available only in North America hp values for all American models except for engines models available everywhere else and use the kW to indicate the engine s true power 16 42 2005 May 31 UTC