Today, Waymo announced its own expansion — minus the puerile humor. It’s just a bigger map with more customers for the Alphabet-owned company’s budding robotaxi business. And more pressure on Tesla to drop the dick jokes and get serious about autonomous driving.

Alphabet's Waymo robotaxis have driven more than 100 million miles without a human behind the wheel, doubling the mileage in about six months, a top company official said, as it speeds up deployment in U.