The McLaren MP4/5 and its derived sister model the McLaren MP4/5B were Formula One racing cars designed by the McLaren Formula One team based in Woking, England.
 The MP4/5 was loosely based on its predecessor, the all-conquering MP4/4.
 McLaren used the new car for half of the season using the Weismann Longitudinal Transmission from the MP4/4, and the MP4/5B with the Weismann Transverse Transmission for the last half of the 1989 season and for , earning back to back drivers' and constructors' world titles with the type.
 The car was designed by American engineer Steve Nichols who previously had designed both of its turbocharged predecessors, the MP4/3, which was an all-new design for McLaren by Nichols, as well as its highly successful MP4/4 the following year/season.
Mika Pauli Häkkinen (   ; born 28 September 1968), nicknamed ""the Flying Finn"", is a Finnish former professional racing driver.
 He was the 1998 and 1999 Formula One World Champion, driving for McLaren and has been ranked among the greatest Formula One drivers in various motorsport polls.
 Häkkinen currently works in driver management and is a brand ambassador for various companies.
The McLaren M29 is a Formula One racing car built and run by McLaren during part of both the 1979 Formula One World Championship and the 1980 Formula One World Championship.
 The F version was built in 1979, but ran during five races of the 1981 Formula One World Championship.
 The M29F was the last of the M-numbered cars, as later in the season, the McLaren MP4/1 was readied for use in the championship.
The McLaren MP4/6 is a Formula One racing car designed by Neil Oatley for use by the McLaren team in the Formula One season.
 It was driven by reigning World Champion, Brazilian Ayrton Senna, and Austria's Gerhard Berger.
The McLaren MP4/9 was a Formula One car designed by Neil Oatley for the 1994 Formula One season and was run by the Marlboro McLaren Team.
 The number 7 car was driven by the team's driver Mika Häkkinen and the number 8 car was driven by Martin Brundle who had signed from Ligier.
 The title sponsor was Marlboro with additional branding by Hugo Boss, Shell and Goodyear.
The McLaren MP4/3 is a Formula One racing car built and run by McLaren International during the 1987 Formula One World Championship.
 It was designed under the leadership of long time McLaren engineer, American Steve Nichols, after John Barnard quit the team in August 1986 to join rivals Ferrari.
 It was the first all-new chassis design for McLaren International since the successful Barnard designed MP4/2 series of cars debuted at the start of the 1984 season and the first McLaren designed by anyone other than Barnard since the Gordon Coppuck designed McLaren M30 had appeared in the last three races of the season.
The McLaren MP4/13 was a racing car that the McLaren Formula One team used during the 1998 Formula 1 season.
 Driven by Mika Häkkinen and David Coulthard, who were retained from the previous season, the car proved to be the dominant car of the season, taking Häkkinen to his first Drivers' Championship and securing McLaren's first constructor's title since 1991.
The McLaren MP4/7A was McLaren International's Formula One entry for the season, and a follow-up to their successful MP4/6 from .
 The Williams-Renault combination was getting faster and more reliable, and became a formidable challenger to McLaren's dominance.
 McLaren used the MP4/6 chassis, designated MP4/6B for the slightly modified Honda RA122E engine, for the first two races of 1992.
 The all-new MP4/7A was expected for the Spanish Grand Prix, the fourth race of the year.
 However, due to Williams' speed in pre-season testing, McLaren team principal Ron Dennis made the decision to bring the car out one race early, at the Brazilian Grand Prix.
 This was one month earlier than expected.
The McLaren MP4/1 (initially known as the MP4) was a Formula One racing car produced by the McLaren team.
 It was used during the 1981, 1982 and 1983 seasons.
 It was the first Formula One car to use a carbon fibre composite monocoque, a concept which is now ubiquitous.
The McLaren MP4/2 was a Formula One car designed by John Barnard of McLaren for the 1984 season.
 An iteration of it, the MP4/2B, was used in the 1985 season, and a slightly updated version, the MP4/2C, raced in the 1986 season for McLaren.
 It was closely based on the MP4/1E model that was used as a test car, used in the final races of 1983.

Question: What years did the driver of the McLaren MP4/13 win the Formula One World Champion?
Answer: 1998 and 1999