When I was a preteen in the 70's, I could name just about every car on the road by sight. The imports at that time were trickier because there were fewer of them on the road, but over time, I could name the bulk of them too. When my attention shifted to trucks, I could do the same. This is because I was a kid with time on my hands and these subjects interested me, so I spent the time learning. Fast forward 30 + years and I could do the same today if I put the time and effort into it. The thing is that my time is consumed by other things, and I see little reward in spending the time learning the cars and trucks all over again. The bottom line is I grew up. I have a feeling I am not alone in this regard.