Apple's partnership with NIO to build Apple car, real or rumour?

$Apple(AAPL.US)$ A rumour has been spreading like wildfire that Apple is going to partner with the premium EV maker NIO $NIO Inc(NIO.US)$ to build the level 5 autonomy self-driving EV, Apple car, slated to be launched in 2025. I believe they are the perfect match in heaven, as they both complement each other to propel to the next growth story for the years to come.