Cars change gradually enough that you don’t notice a feature is gone until you go looking for it and it isn’t there. Some of these disappeared because something better replaced them. Others got cut for cost, weight, or liability reasons that had nothing to do with whether drivers actually wanted them. Here’s a rundown of car features that disappeared and why.
The Full-Size Spare Tire
A real, full-size spare in the trunk used to be a given. Now most new cars ship with a thin ‘donut’ spare rated for limited speed and distance, a tire inflation kit, or nothing at all. The change comes down to weight and space — automakers chase fuel economy numbers and interior packaging, and a full-size spare costs both. The tradeoff is real: a run-flat or compact spare gets you to a shop, not across three states.
The Cassette Deck, Then the CD Player
Cassette decks disappeared first, replaced by CD players through the 2000s and into the early 2010s. Then CD players quietly vanished too, pushed out by USB ports, Bluetooth streaming, and built-in infotainment systems. Both changes followed the same pattern: the format people were actually using moved on, and the in-car hardware eventually caught up and then leapfrogged past it entirely.
Manual Window Cranks and Door Locks
Power windows and locks used to be a feature you paid extra for on a base trim. Today they’re standard on nearly everything, and manual cranks have become a rare option reserved mostly for stripped-down commercial or fleet trims. It’s a case of a ‘feature’ becoming so universal it’s no longer worth advertising — or omitting.
Pop-Up Headlights
Once a defining look on sports cars through the 1990s, pop-up headlights disappeared almost entirely by the early 2000s. Pedestrian safety regulations made hidden, mechanically raised headlight housings a liability in a collision, and as aerodynamic headlight designs improved, there was no longer a styling reason to hide them behind a panel anyway. For more on how safety regulations shape vehicle design, see IIHS.
The Ashtray and Cigarette Lighter
Nearly every car built before the 1990s had a dedicated ashtray and a cigarette lighter in the dash. As smoking rates declined and 12V power needs shifted toward phone chargers and accessories, the cigarette lighter slowly became just a 12V power outlet that nobody plugs an actual lighter into, and the ashtray disappeared from the design brief entirely.
Vent Windows and Manually-Operated Sunroofs
Small, separately-hinged vent windows ahead of the main door glass were once a common way to get airflow without rolling the whole window down. Better HVAC systems and improved cabin sealing made them unnecessary, and they disappeared by the 1970s on most models. Manually cranked sunroofs followed a similar arc, replaced first by electric sunroofs and now increasingly by fixed glass panoramic roofs that don’t open at all.
Why It Keeps Happening
Most of these changes share the same underlying logic: cost, weight, regulation, or a better replacement made the old feature redundant. None of them disappeared because engineers decided drivers didn’t deserve them — they disappeared because something else, often invisible to the person behind the wheel, made the old way obsolete. Some trends run the other way, too — manual transmissions are having a moment even as automakers phase them out elsewhere. The next features on this list are probably already disappearing right now; we just won’t notice until we go looking for the spare tire that isn’t there.