Seems like everyone agrees, its always camera and radar for Volvo SPA/CMA, they have just changed the components and locations. IMO it's hard to say what's "better" as we don't know why they make the changes, could be simple cost, regulatory changes etc. I suspect so much happens in software, you can't even begin to know what happens between the sensors and what you experience, if you have no visiblity into the "black box" that sits between those things. Not that some speculation isn't fun. Ultimately all that matters is the end result, how does it work for you.
As we can see with the SPA2, Volvo looks to be adding sensors, with the LIDAR in the upcoming models. Very opposite of Tesla. Although I am completely unqualified to say (why let that stop me hehe) it seems that all the "sensor fusion" talk from Tesla publicly justifying their camera-only shift, I think they made the wrong choice on that. Maybe it is very difficult to manage the multiple sensors input into a physical model, but it seems like each type: radar/camera/lidar, can see things that the other sensors can't.
As we can see with the SPA2, Volvo looks to be adding sensors, with the LIDAR in the upcoming models. Very opposite of Tesla. Although I am completely unqualified to say (why let that stop me hehe) it seems that all the "sensor fusion" talk from Tesla publicly justifying their camera-only shift, I think they made the wrong choice on that. Maybe it is very difficult to manage the multiple sensors input into a physical model, but it seems like each type: radar/camera/lidar, can see things that the other sensors can't.