This is a very interesting topic, I think a lot about stuff like this! 
1:
In this world the cars are living creatures. They can move without turning on their engine, but they can’t go
very fast and maybe they also quickly get tired. When they turn on their engine they can go much faster and keep
going for much longer.
2: I don’t think the cars can know exactly how fast they are going, but I think
they instinctively know their approximate speed. I also think they instinctively have a feeling of what their oil
pressure is, just like the example with Sheriff as already mentioned. About the navigation system I think it is
built in in their system in a way that they just know. I don’t really know how to explain it, but because they
are living cars those things are natural for them and may seem incomprehensible to us as humans. I think the cars
have a better feeling of what is going on in their body than humans have of what is going on in theirs.
3:
I think the things cars intake with their mouth are everything they need but gas, like oil, brake fluid etc. I
think the mouth lead to those specific need areas in their body and that they instinctively will get the oil and
other fluids to their right places, like when we eat we don’t get our food into our lungs. I also think the cars
can taste with their gas tank ? McQueen said to Fillmore that his organic fuel was great.
4: I think that
a car house mainly consists of a sleeping room like in the Cozy Cones. Maybe some cars have some kind of living
room for when they have company over. I don’t think they have a toilet. I have never understood that thing in
the movie with the long line to the ladies room!? I just can’t imagine cars having to use the toilet, I think
that maybe they are doing something else in there, but I have no clue as to what!
5: Yes, I think so, but
I’m not sure if they feel pain to the same extent as we do, because then I think the cars involved in the big
crash in the race in the opening scene would have winced a lot more, the same with the King in his big
crash.
6: Well, at first I wanted to say no, but I think they could have public transportation for getting
across the ocean to other continents. That would probably be in the shape of ships or air planes.
7: This
one I don’t know. Maybe I’ll figure it out at some point. But tire imprints are meaningful; think of McQueen’s
daydream of also being a famous movie star and making tire imprints in a tile in Hollywood
.
8: I think
baby cars are built at a factory; think of what Mack said when he found McQueen in Radiator Springs ? "I
thank the manufacturer that you’re alive". I
think that getting a baby car is a mutual and maybe romantic decision the mommy and daddy car make. They then go
to a manufacturer and either adopt an already made baby car or maybe they built one together, I haven’t figured
this out completely yet, and I also haven’t figured out yet how the baby car comes alive, but there is a way and
I’m sure it’s romantic without being yucky.
About what happens when cars sleep, I think it’s pretty
much the same as when we sleep, they recharge their “mental batteries”.
As to what a car date
would be like I think it could be something like going for a drive; think of what Lizzie told about Stanley
asking her out for a drive, I think that he was kind of asking her out on a date. Maybe it could also be going to
a place like Flo’s V8 Caf? or the drive in theatre just the two of them.