Here's a breakdown of key moments:
Power Windows:
* Early attempts: There were rudimentary power window systems in the early 1900s, but they were unreliable and not widely adopted.
* 1930s: Some luxury cars, like the Packard and Lincoln, offered optional power windows.
* Post-WWII: Power windows started becoming more common, especially in American cars like the 1949 Cadillac.
Power Locks:
* 1940s: Power locks were first introduced in the 1940s on luxury cars.
* 1960s: Power locks became more common in the 1960s, especially with the introduction of "power packages" that bundled power windows, locks, and seats.
So, what about the "first" car?
It's hard to definitively say, as the earliest examples were likely limited to luxury vehicles and didn't necessarily include both features simultaneously.
To summarize:
* Power windows: The Packard and Lincoln cars of the 1930s are early examples.
* Power locks: Cars in the 1940s are where power locks first appeared.
However, the development of these features was a gradual process, and it's impossible to say with absolute certainty which car was the very first.