Calls have been made to ensure trains bought to specifically to serve the West Midlands are kept in the region when the service is nationalised.
Earlier this year, the Government announced West Midlands Trains would be brought back under public control from February 1 next year
But, at a West Midlands Combined Authority's (WMCA) Transport Delivery and Overview Scrutiny Committee meeting, members were told there were concerns new trains allocated to the region could be lost.
Birmingham Conservative group leader Robert Alden raised the issue, flagging up concerns from the transport member engagement group he chairs.
He said: "With the ending of the West Midlands Trains contract, all the local trains now go to the national government company.
"There is obviously a risk, although not any indication this is going to happen at the moment, that those new trains we had in the West Midlands over the last year could actually end up being used on train lines elsewhere in the country."
He asked committee chair Tim Huxtable to raise the issue with the Mayor of the West Midlands Richard Parker to 'ensure that we see those brand new trains' stay here.
Councillor Huxtable said: "Those of us who are also directors of West Midlands Rail Executive can raise that at the next meeting."
West Midlands Trains has two brands – West Midlands Railway and London Northwestern Railway.
The former runs local services across Birmingham, the Black Country and wider region including the key Cross City line between north Worcestershire and Lichfield via University of Birmingham, New Street and Sutton Coldfield. It also serves stations in Shropshire, Warwickshire, Worcestershire and Herefordshire.
London Northwestern Railway runs a host of longer services connecting London, the West Midlands, Staffordshire, Crewe and Liverpool as well as local routes in the South East.
When nationalisation was announced, managing director Ian McConnell said: "I am extremely proud of what we have achieved under this franchise, delivering a £1 billion investment in two new train fleets and delivering significantly improved performance which has transformed rail travel for millions of customers.
"As we transition to a publicly owned railway, our focus remains on delivering an outstanding service for our passengers."