I love it! Really good science fiction writers weave just the right amount of factual material/recognized science to create a believable storyline. They take truth and extrapolate it to make a plot that sucks the reader in. Certainly, TC has built the LiquidMetal Bitcoin Miner (LBM) and has secretly installed them on all Lexus vehicles. He and Elon are splitting the $50k/car to finance their other ventures. Super.
I have heard that the GigaMachine moulds the rear section of the Lexus body around the LBM to prevent detection. The communication with the LBM apparatus uses RF technology disguised as an EVIE ring. Recent Lexus purchasers have received a free EVIE ring with their purchase.