You can find it in the tire.
The best place to find a car engine is at a local body shop or garage near you that specializes in the brand of car you are looking to find the engine for
Yes, it is very important for you to find out the correct engine code for your car. Honda specifically posts these engine codes for cars to help you with your new car.
There would be an engine number on the head. That is the bit of the engine where the exhaust / intake is . If you ask the right people they may be able to tell you which car it came out of but only if its a stolen engine or something probably. Ps Vin numbers are on a car body which identify the chassis .
Find out yur self
To find the cars vin number you would have to search around the engine and it is usually around the main head of the engine on the car and it is a long digit number and call the manufacture to verify.
The term RC refers to remote control or radio control, so an RC car engine is for these model controlled cars rather than a car that would be driven by people. You can find more information on an rc car engine here: http://www.amainhobbies.com/
the engine
engine
Go to a mechanic.
I would take your car into an automobile shop to find out precisely this information. Each car is different so I will be unable to say exactly where it is with so little information.
if it had no engine
With no engine or form of another form of propulsion the car would not move.