sˈɪɾi ɪz ðə mˈoʊst kˈɑːmən tˈaɪp, wɪð fˈɪfti fˈaɪv ɛɡzˈæmpəlz ɪn sˈɜːvɪs æz ʌv dʒˈuːn tˈuː θˈaʊzənd ˈeɪtiːn, wɪð fˈɜːðɚɹ ɛɡzˈæmpəlz dˈuː ɪnðə nˌɪɹ fjˈuːtʃɚ.
City is the most common type, with 55 examples in service as of June 2018, with further examples due in the near future.