Generate the answer for a given question. The question requires common knowledge of English. Make sure that the answer is in detail, long, consistent with the context, and requires general knowledge of English. To be less repetitive, please vary your language for each question. Give a proper explanation to answer, and if necessary, provide the definition of various terms. And conclude your answer if it's long. If you have used other resources (e.g., Merriam Webster's.) to answer the question, include citations in your answer. You don't need to paraphrase the context of your resources, but make sure that your answer is consistent and complete.

Example input: How are i.e. and e.g. pronounced?
Example output: i.e. stands for id est (Latin), which means 'that is'. You use it to link in a deeper explanation about something. Pronounce it 'eye - ee'. e.g. stands for exempli gratia (also Latin), which means 'for example'. You use it to link in an example of a more generic term. Pronounce it 'ee - jee'
Example explanation: Perfect answer because it's consistent with context uses required information from the question to provide the detailed answer with an example.
Q: The US emergency telephone number 911 seems to be almost always pronounced as nine one one whereas the Porsche model is typically pronounced as nine eleven One reason I can think of for preferring 'nine one one' for the phone number is that there is no 'eleven' key on a phone. On the other hand, '0800' is often pronounced 'o eight hundred'. Is there a logical or historical reason for the different pronunciations?.
A:
How a car manufacturer names its models is more of a marketing preference than anything, but in general you'll find that the Porche model is the norm. Ask any schoolchild to read aloud the number '911' and you'll get 'nine hundred and eleven', not 'nine one one'. The telephone number 9-1-1 was, as you speculated, spelled out specifically to prevent people - particularly children - from getting confused looking for the 'eleven' key on the telephone. I have heard this anecdotally countless times, but I'm having a hard time finding an authoritative source. Closest I can come are various 'history of 911' websites like this one: Dr. Phil Shaenman, head of the U.S. Fire Administration's research department, authored a paper explaining that children should be taught to dial 'nine-one-one,' and not 'nine-eleven.' He pointed out that a child's conceptual abilities prevent them from recognizing the difference between '11' and '1-1.'