Question: Hangar-7 is a building in Salzburg, Austria, hosting a collection of historical airplanes, helicopters and Formula One racing cars,Hangar-7 is owned by which Red Bull founder, and an Austrian billionaire businessman? 
Context: Red Bull Racing is a Formula One racing team, racing under an Austrian licence, based in the United Kingdom.  It is one of two Formula One teams owned by beverage company Red Bull GmbH, the other being Scuderia Toro Rosso.  The team won four successive Constructors' Championship titles, in , , , and , becoming the first Austrian licensed team to win the title.  The team also produced the quadruple world champion driver of 2010, 2011, 2012, and 2013, Sebastian Vettel.  Managed by Christian Horner, the team has used Renault engines since 2007.  Red Bull Racing then used TAG Heuer-branded Renault engines starting from the season. The 2011 FIA Formula One World Championship was the 65th season of FIA Formula One motor racing.  The original calendar for the 2011 Formula One World Championship consisted of twenty rounds, including the inaugural running of the Indian Grand Prix before the cancellation of the Bahrain Grand Prix.  Pirelli returned to the sport as tyre supplier for all teams, taking over from Bridgestone.  Red Bull Racing was the reigning Constructors' Champion.  Red Bull Racing's Sebastian Vettel was the defending Drivers' Champion, one of five World Champions appearing on the grid.  Vettel won his second World Championship at the 2011 Japanese Grand Prix, becoming the youngest driver, at 24 years and 98 days, to do so.  Red Bull Racing won the Constructors' Championship. The Red Bull RB12 is a Formula One racing car designed by Red Bull Racing to compete in the 2016 Formula One season.  The car was driven by Daniel Ricciardo and Max Verstappen.  Scuderia Toro Rosso driver Verstappen was promoted to Red Bull after swapping places with Daniil Kvyat ahead of the Spanish Grand Prix .  The car is very similar compared to the Red Bull RB11, albeit in a revised livery introduced before the start of the season.  The car used a Renault engine re-badged as a TAG Heuer following the breakdown in the relationship between Red Bull and Renault in .  This was the last Red Bull car with fuel and lubricants from Total — ending their eight-year partnership. Scuderia Toro Rosso, commonly known as Toro Rosso or by its abbreviation STR, is an Italian Formula One racing team.  It is one of two F1 teams owned by Austrian beverage company Red Bull, the other being Red Bull Racing.  Toro Rosso functions as a junior team to Red Bull Racing, with the aim of developing the skills of promising drivers for the senior team.  Since 2010, the team has competed entirely independently of their sister team. Dietrich Mateschitz (born 20 May 1944) is an Austrian billionaire businessman.  He co-founded the Red Bull energy drink company, and holds 49% of the company's shares.  Mateschitz's net worth, as of 2017 , is estimated to be $15.4 billion. The Red Bull RB11 is a Formula One racing car designed by Adrian Newey for Infiniti Red Bull Racing to compete in the 2015 Formula One season.  It was driven by Daniel Ricciardo and Daniil Kvyat.  This was the last Red Bull car with engines badged as "Renault" and to feature their title sponsor Infiniti as they split from Red Bull at the end of the season due to a breakdown in the team's relationship with Renault. The Red Bull RB9 is a racing car designed by Formula One racing team Infiniti Red Bull Racing.  The car was driven throughout the 2013 Formula One season by (then) three-time World Drivers' Champion Sebastian Vettel and team-mate Mark Webber.  Sebastian Vettel, in keeping with his tradition of naming his cars, named his RB9 "Hungry Heidi," after German model Heidi Klum.  Vettel would ultimately claim the Drivers' Championship title, for the fourth consecutive season, at the Indian Grand Prix , after ten wins during the season.  Vettel and Webber also brought the car to the last win and world titles for a V8 and a naturally aspirated engine powered F1 car, marking the end of the V8 and the naturally aspirated engine era of Formula One which began in 1989 when turbocharged engines were banned at that time. Hangar-7 is a building in Salzburg, Austria, hosting a collection of historical airplanes, helicopters and Formula One racing cars, and serving as home for the Flying Bulls, an Austrian aviation team.  Hangar-7 is owned by Red Bull founder Dietrich Mateschitz.  It houses the Michelin starred restaurant Ikarus, two bars and a lounge.  The building is airfoil shaped, constructed of 1,200 tons of steel and 75,000 sqft of glass surface.  "Hangar 8" is the name of the maintenance facility. The Red Bull RB5 is a Formula One racing car designed by the Red Bull Racing team for the 2009 Formula One season.  It was driven by Sebastian Vettel, who drove for Red Bull's sister team Toro Rosso in the 2008 season, and Mark Webber.  The car was launched on 9 February 2009 at the Circuito de Jerez in Spain. Colin Fleming (born April 21, 1984 in San Diego, California) is an American former racing driver who completed in the Formula Renault 2.0 Eurocup, Formula Renault 2000 Germany and Formula Renault 3.5 in 2005 and 2006 with Jenzer Motorsport and Carlin Motorsport, he was also a member from the Red Bull Junior Team, Fleming finished 4th in the Formula Renault 2.0 Eurocup in 2004 and was rookie of the year in the Formula Renault 2000 Germany also in that year.  He also raced against fellow American and Californian and future Formula One Driver Scott Speed.  In 2005 he switched to the Formula Renault 3.5 with Swiss team Jenzer Motorsport, despite three DNS in the first 3 and missing one race of that season he finished 13th with 34 points with a best finish of 3rd in the second race in the Bugatti Circuit, to 2006 he switched to Carlin where he finished 6th in the first race of the season in Zolder, however he failed to qualify to the Second Race of the weekend and he finished 4th in Circuit de Monaco and 8th in both races in Istanbul Park, after this round he asked to leave Carlin and the Red Bull Junior Team, Red Bull officially released him and he was replaced by fellow Red Bull Junior Team member and Future Formula One Champion Sebastian Vettel, after leaving Red Bull, he returned to the United States to complete in the Atlantic Championship mid-season and he finished 20th with 45 points and since then has not raced anymore in a Major Series, until he decided to retire.  Now Colin is a high-level executive with Salesforce.
Answer: Dietrich Mateschitz