One of the unresolved questions surrounding General Motors’ interest in acquiring Lyft is what price the automaker was willing to pay. Now we have part of the answer: Lyft’s leaders informed the company’s board of directors this summer that GM expressed interest in a $6 billion deal, according to two people with knowledge of the disclosure.

Another person briefed on the deal said that GM verbally indicated it might pay $4.5 billion plus an equivalent amount to whatever the cash Lyft had on hand. Lyft has about $1.4 billion of cash on hand.