bˈoʊθ vˈiəkəlz wɜː bˈɪlt baɪ dʒˈuːn nˈaɪntiːnhˈʌndɹɪd fˈoːɹɾi θɹˈiː bˌʌt æz wɪððə tˈiː twˈɛnti ðɛɹwˌɜː tɹænsmˈɪʃən ˈɪʃuːz ænd wˈɜːk ɔnðə tˈiː twˈɛnti tˈuː wʌz kˈænsəld ɪn dᵻsˈɛmbɚ nˈaɪntiːnhˈʌndɹɪd fˈoːɹɾi fˈoːɹ.
Both vehicles were built by June 1943 but as with the T20 there were transmission issues and work on the T22 was cancelled in December 1944.