Question: Tengku Djan Ley, a professional driver who uses the drift technique of intentionally oversteering through a corner, is the head of what Motorsport company?

Context paragraphs:
Grey Ghost Streamer: The Grey Ghost Streamer is an artificial fly, of the streamer type.  Its primary function is to imitate smelt.  The streamer's wing gives it a swimming action while trolling or using the Dead Drift technique.

Tengku Djan Ley: Tengku Djan Ley bin Tengku Mahaleel is the head of Proton Motorsports and is also a Malaysian professional drift driver who has taken part in the D1 Grand Prix racing series and others.  He has won the 12-hour Merdeka Millennium Endurance race twice in 2005 and 2006.  Tengku Djan Ley is of the Kelantan royal lineage.

Drifting (motorsport): Drifting is a driving technique where the driver intentionally oversteers, with loss of traction in the rear wheels or all tires, while maintaining control and driving the car through the entirety of a corner.  Car drifting is caused when the rear slip angle is greater than the front slip angle, to such an extent that often the front wheels are pointing in the opposite direction to the turn (e.g. car is turning left, wheels are pointed right or vice versa, also known as opposite lock or counter-steering).

List of Suzuka Circuit fatalities: This article lists the fatal accidents that happened in the Suzuka Circuit, a motorsport race track that is operated by Mobilityland, a subsidiary of Honda Motor Co., Ltd., located in Suzuka City in the Mie Prefecture of Japan.  The accidents that have occurred here had mostly included cars (twelve, one involving the safety car), although motorcycles (seven) have also been involved.  There were as many as seventeen people who were victims of the crashes that had happened in the track during its half-century of existence, almost all of them Japanese professional racers, with the exception for Elmo Langley (American safety car driver) and Jules Bianchi (French professional driver) incidents.

Van Merksteijn Motorsport: Van Merksteijn Motorsport is a Dutch motorsport company active in both circuit racing and rallying.  Established in 2008, under the ownership of Peter van Merksteijn Sr. and with Gerard Grouve as team principal, this motorsport company won both the LMP2 class title in the prestigious 24 Hours of Le Mans and in the gruelling the Le Mans Series in its first year of competition.  Only one year later the team from Hengelo were again unbeatable when contesting the Dutch Rally Championship.  For the 2011 season, the team has once more undertaken very ambitious plan: Peter van Merksteijn Jr. will compete in the World Rally Championship alongside Peter van Merksteijn Sr. driving a Citroën DS3 WRC.

Aussie Racing Cars: Aussie Racing Cars is an Australian motor racing category.  Essentially a motorcycle powered Silhouette racing car class, it was created by former touring car racer Phil Ward, influenced by the American Legends category.  Ward sold the category in 2012 to Keltic Motorsport, a motorsport company owned by Queensland based father-son team of Tony and Klark Quinn with Bathurst 1000 winner Jason Bargwanna acting as commercial director.

Ford World Rally Team: The Ford World Rally Team, also known as the "Ford Motor Co.  Team" prior to 2005, is Ford Motor Company's full factory World Rally Championship team.  In its current form, it has been a competitor since the 1997 season, when Ford Motor Company's motorsport arm selected the Malcolm Wilson Motorsport company to run its factory team, entering the Ford Escort World Rally Car.  The new team took their first victory in the 1997 Acropolis Rally.

Driving license in the Philippines: Driver's license in the Philippines consists of three types.  These are Student Permit, Non-Professional driver's license, and Professional driver's license.  The minimum age for driving in the Philippines is 17 years old provided that the driver has a student permit and is accompanied by a person with a valid driver's license.  An applicant can only apply for a non-professional driver's license one month after acquiring a student permit and 6 months after for a professional driver's license.  An applicant must pass both the Land Transportation Office written exam and a driving exam.  If the applicant fails the tests, he must wait for a month before being able to take the tests again.

Gould Racing: is a British motorsport company, specialising in racing car manufacture and engineering.  The company is run by David Gould, and is based in Newbury, Berkshire, England.

Otto Frank Graven: Otto Frank Graven (born May 25, 1975), is a professional driver from Kimberley, Northern Cape, South Africa, who has successfully competed in numerous motorsporting codes.  He competed locally in the Botts Motorcycle series and later went on to establish himself as one of the countries top Drifters.  In 2011, he was awarded a Pro Licence by one of the world's leading drift series in America.  He competed in the Formula Drift season and managed to complete five out of the seven events as a rookie driver.

Supporting paragraphs: Tengku Djan Ley Drifting (motorsport)
Answer: Proton Motorsports