Andreas Nikolaus "Niki" Lauda (born 22 February 1949) is an Austrian former Formula One driver and a three-time F1 World Drivers' Champion, winning in 1975, 1977 and 1984. He is currently the only driver to have been champion for both Ferrari and McLaren, the sport's two most successful constructors. He is considered by some as one of the greatest F1 drivers of all time. More recently an aviation entrepreneur, he has founded and run two airlines (Lauda Air and Niki).

After an unsuccessful start to the 1970s culminating in a disastrous start to the 1973 season, Ferrari regrouped completely under Luca di Montezemolo and were resurgent in 1974. The team's faith in the little-known Lauda was quickly rewarded by a second-place finish in his debut race for the team, the season-opening Argentine Grand Prix. His first Grand Prix (GP) victory - and the first for Ferrari since 1972 - followed only three races later in the Spanish Grand Prix. Although Lauda became the season's pacesetter, achieving six consecutive pole positions, a mixture of inexperience and mechanical unreliability meant Lauda won only one more race that year, the Dutch GP. He finished fourth in the Drivers' Championship and demonstrated immense commitment to testing and improving the car. The 1975 F1 season started slowly for Lauda; after no better than a fifth-place finish in the first four races, he won four of the next five driving the new Ferrari 312T. His first World Championship was confirmed with a third-place finish at the Italian Grand Prix at Monza; Lauda's teammate Regazzoni won the race and Ferrari clinched their first Constructors' Championship in 11 years; Lauda then picked up a fifth win at the last race of the year, the United States GP at Watkins Glen. He also became the first driver to lap the Nurburgring Nordschleife in under seven minutes, which was considered a huge feat as the Nordschleife section of the Nurburgring was two miles longer than it is today. Lauda famously gave away any trophies he won to his local garage in exchange for his car to be washed and serviced. Unlike 1975 and despite tensions between Lauda and Montezemolo's successor, Daniele Audetto, Lauda dominated the start of the 1976 F1 season, winning four of the first six races and finishing second in the other two. By the time of his fifth win of the year at the British GP, he had more than double the points of his closest challengers Jody Scheckter and James Hunt, and a second consecutive World Championship appeared a formality. It would be a feat not achieved since Jack Brabham's victories in 1959 and 1960. He also looked set to win the most races in a season, a record held by the late Jim Clark since 1963. A week before the 1976 German Grand Prix at the Nurburgring, even though he was the fastest driver on that circuit at the time, Lauda urged his fellow drivers to boycott the race, largely because of the 23-kilometre (14 mi) circuit's safety arrangements, citing the organisers' lack of resources to properly manage such a huge circuit- i.e. the lack of fire marshals; fire and safety equipment and safety vehicles. Most of the other drivers voted against the boycott and the race went ahead. On 1 August 1976 during the second lap at the very fast left kink before Bergwerk, Lauda was involved in an accident where his Ferrari swerved off the track, hit an embankment, burst into flames and made contact with Brett Lunger's Surtees-Ford car. Unlike Lunger, Lauda was trapped in the wreckage. Drivers Arturo Merzario, Lunger, Guy Edwards and Harald Ertl arrived at the scene a few moments later, but before they were able to pull Lauda from his car, he suffered severe burns to his head and inhaled hot toxic gases that damaged his lungs and blood. As Lauda was wearing a modified helmet, the foam had compressed and it slid off his head after the accident, leaving his face exposed to the fire. Although Lauda was conscious and able to stand immediately after the accident, he later lapsed into a coma. Lauda suffered extensive scarring from the burns to his head, losing most of his right ear as well as the hair on the right side of his head, his eyebrows and his eyelids. He chose to limit reconstructive surgery to replacing the eyelids and getting them to work properly. Since the accident he has always worn a cap to cover the scars on his head. He has arranged for sponsors to use the cap for advertising. With Lauda out of the contest, Carlos Reutemann was taken on as his replacement. Ferrari boycotted the Austrian Grand Prix in protest at what they saw as preferential treatment shown towards McLaren driver James Hunt at the Spanish and British Grands Prix. Lauda returned to race only six weeks (three races) later, appearing at the Monza press conference with his fresh burns still bandaged. He finished fourth in the Italian GP, despite being, by his own admission, absolutely petrified. F1 journalist Nigel Roebuck recalls seeing Lauda in the pits, peeling the blood-soaked bandages off his scarred scalp. He also had to wear a specially adapted AGV crash helmet so as to not be in too much discomfort. In Lauda's absence, Hunt had mounted a late charge to reduce Lauda's lead in the World Championship standings. Hunt and Lauda were close friends away from the circuit, and their personal on-track rivalry, while intense, was cleanly contested and fair. Following wins in the Canadian and United States Grands Prix, Hunt stood only three points behind Lauda before the final race of the season, the Japanese Grand Prix. Lauda qualified third, one place behind Hunt, but on race day there was torrential rain and Lauda retired after two laps. He later said that he felt it was unsafe to continue under these conditions, especially since his eyes were watering excessively because of his fire-damaged tear ducts and inability to blink. Hunt led much of the race before his tires blistered and an inevitable pit stop dropped him down the order. He recovered to third, thus winning the title by a single point. Lauda's previously good relationship with Ferrari was severely affected by his decision to withdraw from the Japanese Grand Prix, and he endured a difficult 1977 season, despite easily winning the championship through consistency rather than outright pace. Lauda disliked his new teammate, Reutemann, who had served as his replacement driver. Lauda was not comfortable with this move and felt he had been let down by Ferrari. "We never could stand each other, and instead of taking pressure off me, they put on even more by bringing Carlos Reutemann into the team." Having announced his decision to quit Ferrari at season's end, Lauda left earlier after he won the Drivers' Championship at the United States Grand Prix because of the team's decision to run the unknown Gilles Villeneuve in a third car at the Canadian Grand Prix. Answer this question using a quote from the following article:

Is there any additional information regarding his teammate?
served as his replacement driver. Lauda was not comfortable with this move and felt he had been let down by Ferrari.