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In this task, you are given a text of many news articles seperated by special token "|||||". Your task is to summarize them.

A mysterious noise is coming from an Apple complex in Sunnyvale. It sounds like some type of industrial machine ramping up, but Apple will not confirm what it is.Security is tight around the complex. Everyone is making a guess as to what exactly Apple may be doing in the overnight hours. They have been secretly working on something and neighbors are guessing it's a car. The San Jose Mercury News reports Apple received permits that describe their buildings to be an auto work area and a repair garage. Now the speculation is Apple could be working on a self-driving or an electric car.Another explanation why the work is going on at night, according to the Mercury, off-peak electricity is cheaper especially during massive power consumption.Apple's spokesperson will not confirm or deny that they are building a high tech car, but they did say Apple has "a long history of developing auto related products." ||||| Exclusive 
  
 Apple's top-secret Sunnyvale, Calif., automotive testing facility has been the source of loud "motor noises" late at night that irked at least one nearby neighbor, AppleInsider has discovered. 
  
  
  
  
  
 Artist's (poor) rendering of an Apple garage. 
  
 Apple has built an "auto work area" and "repair garage" in the town of Sunnyvale, where one neighbor complained of "motor noises" late at night. 
  
  
  
 Construction at Apple's Sunnyvale campus, as seen last year. 
  
 More coverage: 
  
 A resident who lives near Apple's automotive campus in Sunnyvale issued a complaint to city officials last year over concern about noise coming from the property. Major renovations at the Apple-occupied site have been in the works, including the addition of an "auto work area" and a "repair garage," AppleInsider was first to reveal last March.Whether the sounds were construction or something else remains unknown, as Apple has gone to great lengths to conceal what it is doing at the property."(Do) there have to (be) motor noises at 11:00 p.m. at night like last night?" the resident wrote to the city of Sunnyvale. "Even with the windows closed I could still hear it."Apple occupies seven buildings, comprising nearly 300,000 square feet, of a large office complex in the city. One of the buildings, street number "175," was advertised as home to a mysterious company named SixtyEight Research, believed to be a shell corporation for Apple to conceal its real intentions.Sources have indicated to AppleInsider that shipments related to the development of Apple's "Project Titan" automotive effort have been sent to its Sunnyvale campus, just minutes away from the 1 Infinite Loop headquarters. Specifically, "Project Titan" is said to be based out of a building known internally as "SG5."Whether the developments at the site are related to the advancement of the CarPlay platform or are a part of something larger— like a full-fledged Apple-built car —remains a mystery.And Apple, of course, intends to keep it that way. Last year, representatives for the property received permits to build a 10-foot-tall security fence around the buildings Apple occupies, citing the need for both "physical security" and "visual privacy." The permits were required because the fence exceeds local height restrictions.Numerous additional permits for construction inside the buildings specifically say the improvements were done "for Apple," leaving little question as to who requested the security fence, and who is responsible for the late-night noises. |||||
Output:
Strange sounds emanating from a mysterious building in the dead of night. White cars following families as they walk their dogs nearby. Science fiction movie? No, just Apple's latest project. Residents of Sunnyvale, Calif., who live near a complex of buildings Apple started occupying in 2014 tell the San Jose Mercury News it's clear something is going on at the complex, where the sheet metal fences are 12 feet high and security is intense, but no one knows what. One local says he hears "bangs," "thumps," and beeping (like a truck when it backs up) in the wee hours; another says he hears what sounds like a person "waving around" a big piece of sheet metal. Both say there's also sometimes an odd whine or hum that increases in pitch (ABC 7 describes it as sounding like "some type of industrial machine ramping up") and is "loud enough to wake you." One family describes being followed by the aforementioned white Priuses when they walk their dogs near the complex, and say that if they get too close, they're "intercepted" by security guards who use clipboards to hide their shirt logos. What does Apple have to say? "Yeah, no, we're not going to provide an official response," says a rep. But clues, including two recent permit documents describing a "repair garage" and an "auto work area" inside the complex, suggest Apple might be working on a car, likely some sort of high-tech automobile (electric or self-driving, perhaps). Prior reports on the noises described some as sounding like "motors." Asked about the permits, the rep did confirm that Apple has, in the past, worked on projects related to cars. But the people who applied for the aforementioned permits wouldn't comment on what exactly they were for, and not much else is known. (Yeah, it's probably a car.)