Metrolinx, TTC $500M apart on cost of building Scarborough subway.
So far, Murray has kept tight-lipped about the details.
The province has earmarked $1.4 billion dollars to replace the aging Scarborough RT.
In July, city council opted for the more expensive subway option over light rail, which was fully funded by the province. Going underground along the route will cost as much as $1 billion more than the $1.4 billion the province had earmarked for the light rail.
To cover the difference, the city is counting on property tax increases, increased charges for developers and about $400 million to $700 million in federal money.
Murray, however, has expressed doubt that the federal government will step up to cover the funding gap.
Mayor Rob Ford prefers the subway option for Scarborough but has said that without federal money, the project is dead.