Frank Biela (born 2 August 1964 in Neuss, Germany) is an auto racing driver, mainly competing in touring cars and sportscar racing. He has raced exclusively in cars manufactured by the Audi marque since 1990.

Biela started his career in 1983 in karting before joining the Ford Youngster Team programme in 1987 alongside Manuel Reuter and Bernd Schneider. He drove for the team in Formula Ford and the Deutsche Tourenwagen Meisterschaft (the German touring car championship), where he won the race at AVUS in 1987. Biela continued to compete in the DTM in 1988, and also raced a limited season in German Formula Three, scoring two wins.

In 1990, he moved to Audi, winning the DTM race at the Nürburgring and the DTM championship in 1991 before Audi left the DTM in mid-season of 1992. Biela stayed with the company, and with the rise of the two-litre Class 2 (Super Touring) rules in other series across Europe, he was entered in various European touring car series over the following few seasons such as the French Supertouring Championship in 1993 driving the Audi 80 (in which he won the championship in) entered by Audi into the championship pairing alongside Marc Sourd. Since his French Supertouring Championship victory in 1993, he is the only standing non-French driver to win it. In 1995, he won the Touring Car World Cup race at Paul Ricard in the new Audi A4, which quickly became one of the dominant touring cars of the mid-1990s.

Tom Kristensen (born 7 July 1967 in Hobro) is a Danish racing driver. He has won many championships in auto racing but his most famous achievement is being the only person to win the prestigious 24 Hours of Le Mans eight times, six of which were consecutive (from 2000-2005). In 1997, he won the race with the Joest Racing team, driving a Tom Walkinshaw Racing-designed and Porsche-powered WSC95, after being a late inclusion in the team following Davy Jones' accident that eventually ruled him out of the race. All of his wins since then have come driving an Audi prototype, except in 2003, when he drove a Bentley prototype. In both 1999 and 2007 Kristensen's team crashed out of a comfortable lead in the closing hours of the race.

Tom's career began in 1984, winning several karting titles. He raced in Japan in the early 90s, concurrently in Formula 3 and Touring Cars. He was German Formula 3 Champion in 1991,Japanese Formula 3 champion in 1993, and runner-up in the Japanese Touring Car Championship (JTCC) in 1992 and 1994. He was 6th in Formula 3000 in both 1996 and 1997, and test driver for Tyrrell in their final Formula One season in 1998, and for Michelin as they prepared their F1 tyres using an older Williams car in 2000. He was 3rd in the STW Cup in Germany in 1999, 7th in the British Touring Car Championship in 2000, and winner of the 12 Hours of Sebring in both those years.

Emanuele Pirro (born January 12, 1962 in Rome, Italy) is an Italian former Formula One driver and five time Le Mans 24 hour winner.

Pirro started his racing career in karts at the age of 11. At 18, he raced with the Formula Fiat Abarth, then moving on to F300, F2, F3. From 1989 to 1991, he was a Formula One driver and participated in 40 grands prix, first for Benetton and later for Scuderia Italia. He scored a total of 3 championship points.

After leaving Formula One, Pirro became involved in touring car winning the Macau Guia race twice in 1991 and 1992 at the wheel of a BMW M3 Evolution and the Italian Touring car championship in 1994 and 1995 driving for Audi.

Further success followed in sports car racing, with three wins at the 24 Hours of Le Mans in three consecutive years (2000 to 2002) partnered with Frank Biela and Tom Kristensen for Audi Sport Team Joest.

Emanuele Pirro, Frank Biela and Marco Werner made history by becoming the first drivers to win the Le Mans 24-hour race in a diesel-powered car. Pirro was driving the Audi R10 Diesel when it completed a record 380 laps of the La Sarthe circuit. The team repeated the feat the following year.