Machines don't spy. People and governments do. Alarmist articles like this make good click baity head lines. But from a technical point of view there isn't a whole lot of new information here.
Most people use smart phones. Those are generally GPS equipped and can also be triangulated between cell towers down to a few hundred meters. When using a WIFI, that gets a lot better. And they have a few other active radios as well (uwb, bluetooth, nfc, etc.).
And they have active microphones that respond to phrases like "Siri!", "Hey Google!", etc. And they probably have exploitable back doors that shady government agencies might be exploiting. At least popular spy fiction from a quarter century ago suggests that governments might be doing such things. You'd have to assume they are at this point and that there's some level of truth to these Hollywood spy fantasies.
Your car might be reporting its location and listening in on conversations as well but it's not adding a whole lot of new information. Most new cars actually come with induction phone chargers. Drivers put their phone right next to them to charge. Very convenient. And it connects to the car even! Shock horror. Most of the tracking and spying tech in the car is a bit redundant if you consider that. Nice to get a bit clearer audio from some extra microphones and slightly better precision of the user's location.
But the good news is that most car drivers don't car pool and sit in the traffic jam alone mostly not having meetings. They might be taking calls (on their phone). But otherwise, there isn't a lot to spy on that wasn't already well covered for those interested in doing the spying.
If you are worried about being spied on, have your meetings in a Faraday cage or in nature far away from any devices. And don't take your smart phones anywhere near those meetings. Also consider wearing a tin foil hat. And maybe don't hold your secret meetings in cars. You'll be fine. Otherwise, the bad news is that you are probably in reach of a vast network of cameras, active microphones, etc. regardless of what you do with your personal devices (including your car). You have been for the past few decades.