dˈʌbəljˌuː ænd pˈiː mˌeɪd hˈaɪ spˈiːd pˈɛtɹəl ˈɛndʒɪnz fɔːɹ mˈɛni mˈoʊɾɚ mˌænjuːfˈæktʃɚɹɚz bˌʌt mˈoʊst əv ðɛɹ lˈɑːɹdʒ ˈɛndʒɪnz wɜː fɔːɹ dˈɛnɪs bɹˈʌðɚz lˈɪmɪɾᵻd hˌuː bɪkˌeɪm ðɛɹ lˈɑːɹdʒɪst kˈʌstəmɚ.
W & P made high speed petrol engines for many motor manufacturers but most of their large engines were for Dennis Brothers Limited who became their largest customer.