A senior government source says the idea was drawn up by officials and has not been considered by the PM.
The Japanese car maker has told the BBC its Sunderland plant is secure for the long term.
Government borrowing hit £34.1bn last month, as the cost of pandemic support measures weighed on the economy.
Clothing was the hardest-hit sector last year, seeing a 25% drop in sales overall.
A 14-year-old boy has been arrested on suspicion of murder following the "inconceivable violence".