100 years? Really?
How many 100 year old cars so we see on the roads today? A handful - most are in museums or only rolled out for vintage car festivals.
You could argue that there were less cars back then. Fair enough, but how many even fifty year old cars are on the roads? Even pre-2000 cars are rare, and easily identifiable due to the older format registration plate.
I think in 100 years nobody (or very few people - less than ten) is going to be regularly driving a Ford Zetec to the shops. They’ll be in museums or driven on special occasions or to vintage car rallies.
If I shat in your hand would you share it