Yeah I was going to say, phones are currently growing bigger after hitting a sort of "peak small" lol.
They're getting so huge that it's hard to find a small one without ordering an old model. I like to be able to see things and all but at a certain point they don't fit comfortably in my pockets
On a modern phone, the display is almost the only thing a user really interacts with. It makes sense to have a large display so that it can show/"do" more stuff.
With cars, on the other hand, "size" and "weight" are basically the two values you want to reduce the most. They make the vehicle slower, less maneuverable, increase drag, braking distance, fuel consumption, accident severity and overall cost.
The function of autos is to transport things from point A to point B. Unless the size of these things has increased dramatically in recent decades, it is downright idiotic to increase these two values.
Sitenote: I renovated my entire apartment with a Volkswagen Up! Unless people ludge around fully assembled sofas all the time, the smallest vehicle offered by modern car manufacturers is sufficient.