Since the first cars emerged in the 1880s, manufacturers have constantly worked to add new innovations to their vehicles to try and improve life on the road. All of the advances - from the obvious safety improvements such as seatbelts or airbags, to the less obvious developments such as aerodynamics or monocoque construction - have proved to be indispensable and have made cars what they are today.
We managed to whittle down the list into the 100 you see here - which we've broken down into 20 categories for easier reading - and we think we covered all the important bases. Then we asked you what you thought.
Would you go for something that had saved many lives, or something that just made your car journey more comfortable? Did you value a feature that made your car a better, more enjoyable experience to drive, or was it just something to make your car look like the coolest ride on the block?
Now you've had your say, it's time to find out what 4Car readers think is the most important automotive innovation of all time. And the winner is...
Now you've had your say, it's time to find out what 4Car readers think is the most important automotive innovation of all time. And the winner is...