Question: What Austrian race car driver, currently racing for Aston Martin Racing, was one of the seat holders for the A1 Team Austria team in the 2005-06 A1 Grand Prix season?

Context paragraphs:
2005–06 A1 Grand Prix of Nations, Great Britain: The 2005–06 A1 Grand Prix of Nations, Great Britain was an A1 Grand Prix race, held on 25 September 2005 at the Brands Hatch circuit in Kent, England.  This was the first in the 2005-06 A1 Grand Prix season, and the first race in the history of the A1 Grand Prix series.

2006–07 A1 Grand Prix of Nations, Australia: The 2006–07 A1 Grand Prix of Nations, Australia is an A1 Grand Prix race, to be held on 4 February 2007 at Eastern Creek Raceway in Sydney, Australia.  This was the seventh race in the 2006-07 A1 Grand Prix season and the second meeting held at the circuit.  Nico Hülkenberg, who won both the Sprint and Main races, set the still standing (as of March 2013) outright lap record for the original 3.93 km (2.44 mi) long circuit with a time of 1:19.1420 in his A1 Team Germany Lola A1GP Zytek.

Mathias Lauda: Mathias Lauda (born 30 January 1981) is an Austrian race car driver currently racing for Aston Martin Racing as a factory driver in the FIA World Endurance Championship.  He is the son of three-time Formula One world champion Niki Lauda and Marlene, and also has a brother, Lukas, who is currently his manager.

List of A1 Grand Prix records: This article is a list of records in the A1 Grand Prix World Cup of Motorsport, since the inaugural 2005–06 A1 Grand Prix season, and is accurate up to and including the 2008–09 A1 Grand Prix season.

A1 Team Austria: The A1 Team Austria is the Austrian team of A1 Grand Prix, an international racing series.  It was involved only in the first A1 Grand Prix season.

Lauda Motorsport Management: Lauda Motorsport Management is a company run by the Lauda Motorsport family involving Nikki Lauda and Mathias Lauda.  They were the seat holders for the A1 Team Austria team in the 2005-06 A1 Grand Prix season.  However the team is now defunct.

Cristiano Morgado: Cristiano Morgado (born 27 August 1979 in Johannesburg) is a South African race car driver of Portuguese descent residing in Durban, South Africa.  His racing achievements to date include winning the Rotax Max World Championship in 2004 and the European Championship the following year in the RM1 class.  He was also on pole position for the 2004 Formula Ford Festival in his first year of car racing.  In 2006 he achieved 4 wins on his way to the runner up spot in the British Formula Three National Class Championship.  These achievements led him to receive the honor of Springbok Colors.  In 2008 he entered the new Formula Volkswagen Series launched in South Africa scoring 8 wins during the championship season.  These results earned him his first A1 Grand Prix berth for A1 Team South Africa as the test driver in Taupo, New Zealand.  Following a good performance he was also selected for the final two races of the season in Portimão, Portugal and Brands Hatch, England.  In a return to karting for the 2011 season, he won the Rotax World Championship in the DD2 Masters class.  He repeated this feat in 2012 and again in 2013, becoming the first driver to ever hold four Rotax world titles.

2005–06 A1 Grand Prix of Nations, South Africa: The 2005–06 A1 Grand Prix of Nations, South Africa was an A1 Grand Prix race, held on the weekend of 29 January 2006 at a street course in Durban, South Africa.  This was the only street course of the 2005-06 A1 Grand Prix season.

Nino Piccoli: Nino Piccoli (born ?? , ??  in ??)  is an Italian racing driver.  He tested for A1 Team Italy during the 2005–06 A1 Grand Prix season.

Aston Martin Racing: Aston Martin Racing is a British auto racing team established in 2004 as a partnership between automobile manufacturer Aston Martin and engineering group Prodrive.  The partnership was initially created for the purpose of returning Aston Martin to sports car racing with the DBR9, a heavily modified variant of the Aston Martin DB9.  Since the DBR9's racing debut in 2005, Aston Martin Racing has expanded to build a variety of cars available to customers, as well as development of Aston Martin's V12 engine for Le Mans Prototype use.  Aston Martin Racing's program has earned several successes over the years.

Supporting paragraphs: Lauda Motorsport Management Mathias Lauda
Answer: Mathias Lauda