Consider that even with a recently lowered valuation, Waymo is valued at around $105B [0]. This list might be using a valuation of Cruise as a division of GM, and I'd bet the valuation is in the tens of billions.
Acquisition is rooted in reality. Valuation is a toss up, see WeWork. DoorDash & Coinbase could be valued for hundreds of billions, but until they exit by going public or get acquired it's all speculation.
