Question: What do the German based company to which Adrian van Hooydonk is best known for their concept currently produces?

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Opel Eisenach: Opel Eisenach GmbH (formerly Opel AWE Planungs GmbH) is a German manufacturing company based at Eisenach in Thuringia, Germany and a subsidiary of Opel.  It currently produces the Opel Corsa and Opel Adam.

Karim Habib: Karim Antoine Habib (born 1970) is a Canadian automotive designer of Lebanese descent, who worked for the BMW group.  He was the Chief Designer of the BMW marque, succeeding Adrian van Hooydonk in 2012.

Autonomie project: Autonomie Project is a fair trade, eco-friendly, and vegan fashion company based out of Boston, MA, in the United States.  The company began in 2007 when group of friends who were frustrated with the fashion and footwear industries due to their lack of transparency and use of sweatshops and harmful chemicals.  Autonomie Project currently produces shoes, flip flops, hand bags, t-shirts, winter hats and accessories.  They work with small, independent cooperatives and fair trade certified facilities located in developing areas of the world including Pakistan, Sri Lanka, Peru, and the US.  As well as being fair trade certified, the company uses eco-friendly products as much as possible such as organic cottons and Forest Stewardship Council certified sustainable all natural rubber.  Autonomie Project certifies all products and materials all the way down the supply chain are vegan, produced by fair trade standards, and are environmentally friendly.

Blitz Research: Blitz Research Ltd is an Auckland, New Zealand based company which currently produces 3 BASIC based programming languages.  Founded in 2000 by Mark Sibly, the company's first product was the now obsolete Blitz Basic 2D, a PC version of the Amiga Blitz Basic.  It was released the same year as the company's foundation.  In 2001, Blitz3D was released.  This allowed programmers to create 3D games and applications in Blitz Basic using DirectX.

Adele Schopenhauer: Luise Adelaide Lavinia Schopenhauer, known as Adele Schopenhauer (12 July 1797 – 25 August 1849), was a German author.  She was the sister of the philosopher Arthur Schopenhauer and daughter of author Johanna Schopenhauer.  "Henriette Sommer" and "Adrian van der Venne" were pseudonyms used by her.

Dokumental: Dokumental GmbH & Co KG Schreibfarben is a German based company and claims to be the world market leader in the development and production of inks and writing fluids.  The products are solely produced in Germany (Ludwigshafen und Mittenwald) and sold in more than 100 countries all over the world.  Dokumental belongs to the Woellner Group Holding.

Julphar: Julphar (Gulf Pharmaceutical Industries) is a public shareholding pharmaceutical company based in Diqdaqah, Ras Al Khaimah, United Arab Emirates.  It was established in 1980 under Sheikh Saqr bin Mohammad al-Qassimi, the late ruler of Ras Al Khaimah and currently produces and distributes pharmaceutical products across five continents.  Julphar produces therapeutic products which target a large range of pharmaceutical segments including consumer, endocrinology, antibiotics, cardiovascular, women's health, dermatology and gastroenterology.

Will Hanrahan: William (Will) Hanrahan is a British television/radio producer and presenter best known for working on BBC programmes such as "Watchdog" and "Good Morning".  Since 1994 he has headed an independent TV company which currently produces studio programming and documentaries for the BBC and Sky TV, A&E, Foxtel, CBS, Discovery and UKTV.  He is a three-times Royal Television Society Award winner and his programmes are currently airing in over 70 countries.  He has executive produced for both the BBC and ITV working with Alistair McGowan on the BBC Restoration project, and Chris Tarrant on the BBC Four History of the World in 100 objects series.  He has recently executive produced a TV series with the renowned Italian criminologist, Massimo Picozzi, for the skyitalia series 'Segreti, Bugie e Omicidi, an Italian language documentary season which helped launch CI Italia.  He is a law graduate with experience in consumer and legal programming.  In 2013/14, Hanrahan also returned to radio presenting as a guest host on BBC Radio in 2014 and 2015.  In 2017, his legal TV series 'The Jury Room' for CBS Reality also saw him present a six-part Podcast.

Adrian van Hooydonk: Adrian van Hooydonk (born 21 June 1964 in Echt, Limburg), is a Dutch automobile designer, best known for several modern BMW concept cars and production vehicles.  He is based in Munich, Germany.

BMW: BMW AG is a Germany-based company which currently produces automobiles and motorcycles, and produced aircraft engines until 1945.

Supporting paragraphs: Adrian van Hooydonk BMW
Answer: automobiles and motorcycles