Tesla Unveils ‘World’s Fastest Production Car’ and Electric Big Rig

Elon Musk pulled off a Steve Jobs-ian “one more thing” surprise at the unveiling of Tesla Inc.’s Semi model, rolling a new Roadster sports car out of the back of a big rig on stage.

The Semi truck going into production in 2019 will boast 500 miles of range, a battery and motors that will last 1 million miles and cheaper total operating costs than diesel models, Tesla’s chief executive officer said. The Roadster, available a year later, will be the fastest production car ever made, he said.