£180 million worth of train carriages built at Derby-based Bombardier will be on show for the Transport Minister, Patrick McLoughlin, today.
The 130 carriages are being tested in London and will be rolled out across the city in December.
More top news
Heavy, thundery showers will clear northwards through the morning, allowing it to turn drier and brighter for many.
Heavy and thundery showers slowly moving north giving way to drier and brighter spells by the afternoon.
Residents in Kings Heath say they predicted an accident yesterday which left an elderly pedestrian critically injured.