Is it aesthetics? Performance? Engineering? Sentimental value? Nostalgia? Weirdness?..
I could go on, there’s as many ways to enjoy a car as there are car owners and I find it very interesting what people value in what is ultimately a tool of conveyance that is elevated by social and personal values.
I always love cars that are just a little weird, they have features that don’t quite make sense, they have styling that just doesn’t fit in with other modern cars, and they certainly don’t blend in at the grocery parking lot. They emanate a certain incongruence with the world around them.
I want to get the feeling that it wasn’t designed by marketing folks. It should clear what the designers found important and what they wanted to build and that they had to compromise on other aspects.
It’s a bit vague, so I’ll give some examples. I loved the Alfa Romeo’s I had. They weren’t the most reliable, didn’t had the highest quality interior and were expensive to maintain. But the sound and throttle response were great and you felt that everything was designed around you: the driver. Some of them had designs where looks are more important than practicality.
Another car that I loved and was completely the opposites was a gen 1 Fiat Punto. That car was designed to be practical and could be repaired with ducttape. One of the few cars where a timing belt snapping wouldn’t ruin the engine. The air filter could be replaced without a screw driver (just undo 2 clips). It was boxy to make it as spacious as possible and light and high on its wheels so it could drive everywhere (road or no road).
My current Renault doesn’t have something special, something unique. It’s just a badly made annoying vehicle that gets you from a to b just like any other car. My previous Ford Fiesta was a bit better and at least had good handling and was one of the cheapest in its class.