Question: Which French car manufacturer supplied the technology for the Burton?
Context: The Renault RS01 was the first Formula One car to be powered by a turbocharged engine.  It was also the first to use radial tyres, which were provided by Michelin.  Designed by André de Cortanze and Jean-Pierre Jabouille, it first appeared at the 1977 British Grand Prix.  The rules of F1 at the time permitted 3.0 litre engines of natural aspiration, with a clause for a 1.5 litre supercharged or turbocharged engine.  None of the teams had pursued this avenue, and stuck to Ford Cosworth DFV engines, whilst Ferrari, Matra and Alfa Romeo concentrated on developing Flat-12 engines for their cars, and their customer teams of Ligier and Brabham.  Leading French car manufacturer Renault decided to develop a 1.5 litre turbocharged engine, and a car to accompany the powerplant. The Citroën 2CV (French: ""deux chevaux" i.e., "deux chevaux-vapeur"" (lit.  "two steam horses", "two tax horsepower") is an air-cooled front-engine, front-wheel-drive economy car introduced at the 1948 Paris Mondial de l'Automobile and manufactured by Citroën for model years 1948–1990. The Peugeot Concours Design competition was a biennial competition run by the French car manufacturer Peugeot.  For each competition, entrants had to submit their designs for a car.  A model of the winning design was built by the Peugeot Styling Centre and unveiled at the Frankfurt Motor Show.  The last competition took place in 2008. The Burton is a Dutch sports car based on French 2CV technology.  The Burton is an open, nostalgic-looking sports car built on the chassis of the 2CV with a modern glassfibre bodykit.  The car can be built as an open two seater, or with a hardtop with gull-wing doors or with a custom made convertible roof.  From the beginning of 2002 the Burton is available all over Europe. The Peugeot 203 is a large family car which was produced by the French car manufacturer Peugeot between 1948 and 1960. The Citroën C-Métisse is a concept car produced by the French car manufacturer Citroën.  It was first introduced in 2006 at the Paris autoshow.  It has been stated that the reason for creating such a car was to show that a hybrid car can have the same performance as a gasoline- or diesel-powered car.  The car is a 5-door 2+2 shooting-brake. (] ) is a Romanian car manufacturer that takes its name from the historic region that constitutes much of present-day Romania.  The company was founded in 1966, and has been a subsidiary of the French car manufacturer Renault since 1999.  It is Romania's top company by revenue and the largest exporter, constituting 7.3% of the country's total exports in 2014. The Peugeot 104 is a city car motor car designed by Paolo Martin and produced by the French car manufacturer Peugeot between 1972 and 1988.  It was the first model produced at the company's Mulhouse .  It was also the first new Peugeot introduced since 1955 not to be available with a diesel option. The Alpine A110 is a rear mid-engine, rear-wheel-drive sports car introduced by French car manufacturer Alpine at the 87th Geneva International Motor Show in March 2017. The Peugeot 308 is a small family car produced by the French car manufacturer Peugeot.  It was unveiled on 5 June 2007, and launched in September 2007.  Its development code was ""Project T7"", and is the first car of the X08 generation of Peugeot models.  The 308 features a range of petrol and diesel engine options.  In March 2011, the 308 received a facelift and it premiered at the Geneva Motor Show.  A second generation was unveiled in 2013 and it was awarded as the 2014 European Car of the Year.
Answer: Citroën