There's a good chance that by the time your kids are old enough to be interested in cars, they will have no clue what a throttle is or know how to find a part inside of an auto shop. The next generation of drivers might not completely understand why cars weren't always the giant computers they are today, but that shouldn't stop you from educating them on the features you grew up on.
Cigarette Lighter

There was actually a lighter in that spot once upon a time, not just an empty spot for your charger. Thankfully, the kids will never experience the pain of dropping one in their lap while driving.
Side Mirrors

These were actually used to see behind and around you. No cameras needed to switch lanes or merge with these bad boys.
CD Holder

These magical devices held your entire cd collection, sure they would get scratched up and fall out occasionally, but they were lifesavers for long drives.
Road Trips Without GPS

No phones, no GPS, just the driver and the car. The open road would lead you where you needed to be.
Road Maps

During the aforementioned road trip, you most likely will get lost and need directions. Road maps were the most valuable thing in your car and saved your butt plenty of times. Plus they didn't need any batteries.
The Auto Part Store

Before Amazon delivered everything to your doorstep, you could actually go in to the store and ask for help.
Manual Windows

Not everything was as easy as the touch of a button, including windows. You had to learn down, crank the handle for about 10 seconds to enjoy the fresh air.
Hubcaps

They used to be on almost every car, and then they would subsequently fly off of every car on the road.
Hood Prop

Having to get the prop in just the right spot so it wouldn't fall on your head when you were fixing the engine was part of the process. Hydraulic props were for the weak.
Halogen Lights

Sure LED lights are safer and help you see further down the road, but there's just something about the glow of a halogen light that makes you feel good.
Parallel Parking Without Computer Assistance

You used to have to actually calculate how much room you needed on the spot to maneuver the car in there.
Dashboard Gauges

They are basically the same as the digital gauges, but there was a bit of pride watching the needle go up the faster you went.
Throttle

Now you can just stick a key in the ignition and boom..your car starts right up, but that wasn't always the case. Having to pull or push the throttle in the right spot took some skill.
Custom Radios

Every car nowadays comes with Bluetooth or an auxiliary cord to play music from your smart phone. Back in the day, this little beauty was the king of the car accessories.