Robert Downey Jr.'s show about cars probes AI, climate change

Robert Downey Jr. knows he has amassed an impressive collection of classic cars — one he self-deprecatingly refers to as artifacts of his success. But trophies, it turns out for the actor, are not all they are cracked up to be. It's that dissatisfaction that helped to inspire “Downey’s Dream Cars,” his latest project debuting Thursday on Max. In it, Downey experiments with genre in a kind of eco-friendly “Pimp My Ride” that is also part memoir and a documentary about the latest advancements in clean technology.