Question: What year was the Whirlpool Aero Car built?
About the article "Niagara Falls", section "Canadian side".

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There are two state/provincial parks located alongside the whirlpool.
On the U.S. side is the Whirlpool State Park.
On the Canadian side is the Niagara Glen Nature Reserve.
The Whirlpool Aero Car, which traverses the river above the whirlpool, is also located on the Canadian side. 
The Whirlpool Aero Car or Aero Car is a cable car located in Niagara Falls, Ontario that transports passengers over a section of the Niagara River referred to as the Niagara Whirlpool.
The system was designed by Spaniard Leonardo Torres Quevedo and upgraded since 1916 (1961, 1967 and 1984).
The system uses one car that carries 35 standees over 1 kilometre trip.
The car originally was open, but a roof has been added to all later designs.
A four person rescue car is available (a smaller white car stored at opposite end in an indoor area), but not used in regular service.
Although the trip is on the Canadian side, it crosses over US side part way into the Whirlpool (about from the starting point and for about ), but passengers do not require passport clearance.
The car operates from 10am to 5pm from second week of March to first week of November.
It is closed during most of the winter due to ice and snow. 
Google celebrated the 160th birthday of Leonardo Torres y Quevedo, the designer of the Whirlpool Aero Car. 
  Aerocar International, the company that built the Aerocar as well as: * Aerocar Aero-Plane, an unusual light aircraft flown in the United States in 1964 * Aerocar Coot, a two-seat amphibious aircraft first flown in 1969, designed for homebuilding by Moulton Taylor * Aerocar Micro-IMP, a light sportsplane developed from the successful Mini-IMP homebuilt in 1978  Niagara Aero Car Company, which built the Whirlpool Aero Car, an attraction at Niagara Falls, in 1913  
The SSC Aero is an American-built mid-engine sports car by SSC North America (formerly known as Shelby SuperCars).
The higher-performance limited-production version had formerly been listed in "Guinness World Records" as the fastest production car in the world.
The record is currently held by Bugatti Veyron Super Sport, since 2010 when it reached the speed of 431.072  km/h.
Recently the record was reverted to the SSC Ultimate Aero but only for a week as "Guinness World Records" changed its mind once again regarding the testing of the Bugatti: “Following a thorough review conducted with a number of external experts, "Guinness World Records" is pleased to announce the confirmation of Bugatti’s record of Fastest production car achieved by the Veyron 16.4 Super Sport.
The focus of the review was with respect to what may constitute a modification to a car’s standard specification.
Having evaluated all the necessary information, "Guinness World Records" is now satisfied that a change to the speed limiter does not alter the fundamental design of the car or its engine.” The SSC Ultimate Aero does not have electronic aids such as ABS brakes or traction control, as according to Jerod Shelby, "Early design philosophy on the car was to make it a driver's car.
I wanted a car that you not only throttled with your right foot but at times you could steer with your right foot.
"The Aero and the Shelby SuperCars company are the brainchildren of Jerod Shelby (no relation to late racing driver and sportscar builder Carroll Shelby), who started out building exotic "replicars" including a Fiero-based Ferrari F355 replica and a Lamborghini Diablo replica based on a spaceframe which later was used in the Ultimate Aero prototype.
Shelby later moved from building replicas to designing his first supercar and after seven years it finally began to take shape.
Both the basic Aero model and the Ultimate Aero are no longer in production.