9 0 ▁locomot ives ▁ha uling ▁six - car riage ▁sets . ▁Transport ▁For ▁Wales ▁will ▁le ase ▁twelve ▁Mark ▁ 4 ▁carri ages ▁to ▁replace ▁the ▁current ▁Mark ▁ 3 ▁coach es ▁in ▁use ▁on ▁their ▁Premier ▁Service . ▁Pro s pective ▁operator , ▁Grand ▁Union , ▁are ▁also ▁propos ing ▁to ▁operate ▁Inter City ▁ 2 2 5 s ▁on ▁London ▁P adding ton ▁to ▁Card iff ▁Central ▁services ▁from ▁December ▁ 2 0 2 0 ▁and ▁London ▁E ust on ▁to ▁St ir ling ▁services ▁from ▁May ▁ 2 0 2 1 . ▁▁▁ ▁During ▁their ▁operation ▁with ▁V TE C ▁in ▁ 2 0 1 6 , ▁there ▁were ▁plans ▁to ▁retain ▁six ▁to ▁eight ▁sets ▁with ▁shorter ▁ra kes ▁for ▁a ▁new ▁London ▁to ▁Edinburgh ▁service , ▁even ▁with ▁the ▁Az uma ▁take over . ▁However , ▁having ▁succeeded ▁V TE C , ▁L NER ▁went ▁ahead ▁to ▁introduce ▁the ▁new ▁Az uma ▁trains ▁with ▁no ▁more ▁plans ▁in ▁retain ing ▁any ▁of ▁the ▁Inter City ▁ 2 2 5 ▁sets ▁due ▁to ▁high ▁maintenance ▁costs ▁on ▁the ▁fleet . ▁This ▁was ▁the ▁idea ▁until ▁L NER ▁announced ▁they ▁were ▁to ▁retain ▁a ▁number ▁of ▁their ▁sets ▁after ▁all . ▁ ▁Cap acity ▁and ▁formation ▁The ▁formation ▁of ▁the ▁Inter City ▁ 2 2 5 ▁sets ▁is ▁below :- ▁▁ ▁Class ▁ 9 1 ▁Electric ▁Lo comot ive ▁( N orth ▁End ) ▁Co ach ▁B ▁- ▁Standard ▁Class ▁- ▁ 7 6 ▁Se ats ▁- ▁W C