Section 3 , Put
a) /cars/update/<%name%>: Add new cars
This is to update the car, however, the description says add a new car.
Code also shows it as example as post, not put.
Section 4 , Delete
a) /cars/remove/<%name%>: Add new cars
Description says it as Add new cars, however it should be remove car.
File : cars-api/templates/index.html
Heading API endpoints and examples, section 1, Get subsection c c) /cars/filter/<%car_type%> : Get the list of users
This is to get the cars list filter with cartype , not the list of users. 
Section 3 , Put a) /cars/update/<%name%>: Add new cars This is to update the car, however, the description says add a new car. Code also shows it as example as post, not put.
Section 4 , Delete
a) /cars/remove/<%name%>: Add new cars
Description says it as Add new cars, however it should be remove car.