>>6013648
>Why are there cars driving with the cyclists?
they are the teams of the cyclists, following them for support and assistance along the race. There are also cars that serve other purposes like medical support, these are long races so there's really no other way to go about it than closely following the athletes
>Why do the bikes apparently not have brakes?
they do but they are trying to go as fast as possible, and something must have gone wrong with the guy that slammed against the car
>Why do the cyclists seem very uncomfortable going around the bend at a moderate speed, are they new to cycling? Why does not a single one take a decent racing line?
have you ever seen a road bike up close? They are taking that turn as fast as possible, it's not like they can lean like on a motorcycle, and they are also probably going faster than you think anyway