Question: Who is the German-Mauritian Formula One driver that won the title with the Mercedes-Benz team HWA AG in the 2015 Deutsche Tourenwagen Masters?

Context articles: 2019 Deutsche Tourenwagen Masters
2011 Deutsche Tourenwagen Masters
2010 Deutsche Tourenwagen Masters
2015 Deutsche Tourenwagen Masters
List of Deutsche Tourenwagen Masters records
2018 Deutsche Tourenwagen Masters
2004 Deutsche Tourenwagen Masters
2006 Deutsche Tourenwagen Masters
Pascal Wehrlein
2008 Deutsche Tourenwagen Masters

The 2019 Deutsche Tourenwagen Masters is planned to be twentieth season of the Deutsche Tourenwagen Masters, since the series' resumption in 2000.
 This will be the first season that DTM will not feature Mercedes-AMG cars after the company announced their withdrawal from DTM on 25 July 2017 due to Mercedes-AMG will switch focus to FIA Formula E from 2019-20 season and thus confirming the end of Mercedes-Benz AMG in DTM after 19 years.
The 2011 Deutsche Tourenwagen Masters season is a multi-event motor racing series largely based in Germany for highly modified touring car racing cars and is one of the most popular sedan car based motor racing series in the world.
 The series features professional motor racing teams and drivers is heavily supported by car manufacturers Audi and Mercedes-Benz.
 Each race features 18 V8 powered racing cars built according to the technical regulations of the Deutsche Tourenwagen Masters.
 It will be the twelfth season of Deutsche Tourenwagen Masters since the series' resumption in 2000.
 The 2011 season will be the first season that cars will not run on Dunlop tyres, instead running on Hankook tyres in the first year of a three-year control-tyre deal.
 It was the final season running the 4-door saloon style spec cars, which has been the series' sole car style requirements since 2004.
 It was also the final season that all DTM cars running with the manual gearbox shifters before all DTM cars switched to sequential semi-automatic gearbox paddle shifters at the following season.
The 2010 Deutsche Tourenwagen Masters season was the eleventh season of Deutsche Tourenwagen Masters since the series' resumption in 2000.
 The season began on 25 April at the Hockenheimring, and ended on 28 November at the Shanghai Street Circuit, after eleven rounds held in Germany, Spain, the Netherlands, the United Kingdom, Italy and China.
 Having finished second in 2008 and third in 2009, HWA Team's Paul di Resta became champion for the first time, having come out on top of a three-way title battle in Shanghai.
The 2015 Deutsche Tourenwagen Masters season is the sixteenth season of the Deutsche Tourenwagen Masters, since the series' resumption in 2000.
 The season started on 2 May at Hockenheim, and ended on 18 October at the same venue, with Mercedes Benz driver Pascal Wehrlein clinching the Drivers' Championship, Mercedes Benz's HWA AG winning the Teams' Championship and BMW taking the Manufacturer's Championship after a total of nine events.
The list of records in the Deutsche Tourenwagen Masters includes records and statistics set in the DTM and ITC.
 The competition started as the Deutsche Tourenwagen Meisterschaft (DTM) in 1984.
 In 1995 the competition expanded and was split between a domestic season and the new FIA International Touring Car Series.
 The following year the DTM went on hiatus but the ITC only lasted one season before being cancelled.
 In 2000 the revived series Deutsche Tourenwagen Masters began.
The 2018 Deutsche Tourenwagen Masters is planned to be nineteenth season of the Deutsche Tourenwagen Masters, since the series' resumption in 2000.
 2018 will be the final season for the current 4.0 litre V8 normally-aspirated engine package that débuted in the inaugural reborn season; as the brand new engine package will be introduced for the following season as a part of the Class One prospect with Japanese Super GT GT500 cars.
 2018 will also be the final season for Mercedes AMG in DTM due to Mercedes AMG switching focus to FIA Formula E from 2019-20 season and thus confirming the end of Mercedes AMG in DTM after 19 years.
The 2004 Deutsche Tourenwagen Masters season was the fifth Deutsche Tourenwagen Masters season since the series' resumption in 2000.
 There were 10 championship race weekend with one round each, plus a non-championship round at the streets of Shanghai.
 Originally each track hosted one race each with the exception of Hockenheimring (two races, premier and finale), but when Avignon lost their race EuroSpeedway also hosted two events.
 Each track hosted one race, with the exception of Hockenheim, which hosted two.
 As in 2003 each weekend compromised one race of circa one hour and with two compulsory pit stops for each contender.
The 2006 Deutsche Tourenwagen Masters season was the seventh Deutsche Tourenwagen Masters season after the series' was resumed in 2000.
 The number of race weekends was reduced, from eleven in 2005, to ten for the 2006 season.
 Each track hosted one race, with the exception of Hockenheim, which hosted two.
 As in 2005, each event consisted of one race of approximately one hour, with two compulsory pit stops for each car.
 The Championship was won by Bernd Schneider driving a AMG-Mercedes C-Klasse 2006 for the HWA Team.
Pascal Wehrlein (born 18 October 1994) is a German-Mauritian Formula One driver who is currently racing for Sauber.
 Holding dual nationality of Germany and Mauritius, he races under the German flag in Formula One.
 He had previously raced in the DTM, winning the title with the Mercedes-Benz team HWA AG in 2015.
 In 2014 Wehrlein became the youngest driver to win a DTM race at the age of 19 and the youngest to win the title in 2015 at the age of 20.
The 2008 Deutsche Tourenwagen Masters season was the ninth season of Deutsche Tourenwagen Masters since the series' resumption in 2000.
 The series began on 13 April at the Hockenheimring and finished on 26 October at the same venue, after eleven rounds.
 Timo Scheider won the title, having never previously won a race before the start of the season.