Question: The Benz Velo was introduced by a German engine designer that received a patent in what year?
Context: In internal combustion engines, a variable-length intake manifold (VLIM),variable intake manifold (VIM), or variable intake system (VIS) is an automobile internal combustion engine manifold technology.  As the name implies, VLIM/VIM/VIS can vary the length of the intake tract - in order to optimise power and torque across the range of engine speed operation, as well as help provide better fuel efficiency.  This effect is often achieved by having two separate intake ports, each controlled by a valve, that open two different manifolds - one with a short path that operates at full engine load, and another with a significantly longer path that operates at lower load.  The first patent issued for a variable length intake manifold was published in 1958, US Patent US2835235 by Daimler Benz AG. The TVR Speed Eight was the name of a normally aspirated V8 car engine designed and manufactured by TVR.  The engine was intended to power the TVR Griffith and the TVR Chimaera but delays in its production meant that it powered only the TVR Cerbera and the TVR Tuscan Racer.  The reason behind the engine's development and production was that in that particular time Rover was bought by BMW and Peter Wheeler the boss of TVR in that time, feared that BMW would drop the Rover V8 engine used in TVRs since the early 80's, so he contracted car engine designer Al Melling to design a brand-new V8 engine to power the TVR Cerbera as well as an engine that TVR could sell to other car manufacturers. Karl Friedrich Benz (]    ; 25 November 1844 – 4 April 1929) was a German engine designer and automobile engineer.  His Benz Patent Motorcar from 1885 is considered the first practical motorcar.  He received a patent for the Motorcar on 29 January 1886.    (] ; 9 February 1846 – 29 December 1929) was an early German engine designer and industrialist.  During the 1890s he was hailed in France, then the world centre for car production, as the "King of Designers". The Halford Special was a Grand Prix racing car of the 1920s built by engine designer Major Frank Halford on the chassis of an early Side Valve Aston Martin tourer.  It was one of the most advanced British-built racing cars of the mid-1920s and had many racing successes.  Halford himself was a freelance engine designer who did work for both the de Havilland Aircraft Company and Napier & Son. The Coats Steamer was an American steam automobile promotion by George A. Coats.  A corporation was formed and perhaps two prototypes were assembled.  Five incrementally different designs were described.  The first was by a "Norwegian engineer" and used two three-cylinder radial engines on the rear axle, one powering each wheel.  The second was by James Yeikichi Sakuyama, for years an engine designer at Indianapolis, with a V-3 engine, gearbox and cast grid steam generator.  It was quickly changed to a fire tube steam generator and inline-3 cylinder engine flat in the chassis.  The fourth design took that Sakuyama chassis and engine and replaced the steam system in late 1923 with Charles A. French's patent design.  The French-Coats was technically the most superior, probably the most likely to have been functional, and the car used in photographs.  The fifth design was simply the chassis of Purdue professor Allen C. Staley, shown as a high grade Coats steam car at three shows. This is a list of the world's record-breaking top speeds achieved by a street-legal production car (as opposed to concept cars or modified cars).  For the purposes of this list eligible cars are defined in the lists rules.  This list uses the same definition as the List of automotive superlatives for the sake of consistency and because the term production car is otherwise undefined.  The Benz Velo, as the first production car, is an exception. The Benz 10/25 PS was a midsize automobile introduced by Benz & Cie in 1912.  The same year stated maximum output was increased which meant a name change to Benz 10/30 PS.  The model disappeared for three years following the First World War but returned in 1921.  A further power increase in 1926 meant another name change, now to Benz 10/35 PS.  Following the "fusion" between the Daimler and Benz companies, production of the Benz 10/35 PS ended in 1927. The Daimler-Benz DB 600 was a German aircraft engine designed and built before World War II as part of a new generation of German engine technology.  It was a liquid-cooled inverted V12 engine, and powered the Messerschmitt Bf 110 and Heinkel He 111 among others.  Most newer DB engine designs used in WW2 were based on this engine.  The decision by the RLM to concentrate on manufacturing aircraft engines using fuel injection systems rather than carburettors meant that the DB 600 was quickly superseded by the otherwise similar DB 601.  Later DB series engines grew in bore, stroke, and horsepower, including the DB 603 and DB 605, but were generally similar to the pattern created with the DB 600. The Benz Velo was one of the first cars.  Introduced by Karl Benz in 1894 as the followup to the Patent Motorwagen, the Velo is credited, together with the Duryea Motor Wagon, patented in 1895, as one of two first standardized cars.  67 Benz Velos were built in 1894 and 134 in 1895.  The early Velo had a 1L 1.5 hp engine and later a 3 hp engine giving a top speed of 12 mph (20 km/h).  The Velo was officially introduced by Karl Benz as the Velocipede, and became the world's first large-scale production car.  The Velocipede remained in production between 1894 and 1902, with a final count of over 1,200 produced.  It was the first car introduced to South-Africa and was demonstrated to then President Paul Kruger on 4 January 1897.
Answer: 1886