We were all giggles when Elon Musk announced the D was coming, but after the unveiling yesterday of the new supercar versions, we had to put a halt to our immaturity and pay attention. The new version of the Model S sports dual-motors (hence the “D”), all-wheel drive, and the top-of-the-line model can go 0-60 in a face-stretching 3.2 seconds. Yes, that Model S P85D boasts a silly 691 horsepower. Just FYI, that’s ridiculous. And while there were rumors the new D models were going to almost drive on their own, it does appear there are at least some semi-autopilot features coming along with it when it ships later this year—adaptive cruise control, the ability to stop if it senses an accident, and it can even read speed limit signs despite the fact that it’ll be hard to obey them when you’re driving an electric rocket.