Question: Jeff Wood made his CART debut in 1983 at a car race sponsored by what company?
Context: Jeff Wood (born January 20, 1957) is an American former race car driver born in Wichita, Kansas.  He was Formula Atlantic Rookie of the Year in 1977.  He drove in the CanAm series for Carl Haas in 1981 and finished 5th in the series behind Danny Sullivan.  In 1982, driving for Bob Garnetson Racing, finished 3rd place in the 24 Hours of Daytona.  He then made his CART debut in 1983 at the Caesars Palace Grand Prix driving for Dan Gurney.  He then drove in the Formula Atlantic West Series where he won the 1985 championship.  He returned to CART in 1987 and made 4 starts for Dick Simon with his best finish being 10th.  He was away from the series in 1988, then returned in 1989 to make 5 starts for Gohr Racing, where he finished 12th at the Michigan 500.  In 1990 he drove for a new team, Todd Walther Racing, where he made his first attempt to qualify for the Indianapolis 500, but crashed in practice.  He made 10 other starts, with a 10th-place finish at Phoenix, finishing 22nd in points.  In 1991 he made 8 starts for Dale Coyne Racing, Arciero Racing, and Euromotorsports with the best finish being 13th.  7 starts in '92 for Arciero netted Wood a 12th-place finish and a single point.  In 1993 Wood attempted a nearly full season for Andrea Moda Formula/Euromotorsports but failed to qualify for 6 races and only made 8 starts and again failed to score points.  He made four more unsuccessful starts in 1994 for Euromotorsports in what would be his final races in the series.  He was named to an entry for the 1996 Indianapolis 500, but the car failed to appear.  His best finish in his 49 CART races was an 8th place that came in his second series start back in 1983 at Laguna Seca Raceway. The Grand Prix of Denver is a former Champ Car race held on a street circuit in Denver, Colorado.  A Champ Car race was first held in Denver in 1909 on a 14.5-mile (23.3-km) road circuit in nearby Brighton.  Racing returned to the Centennial Park dirt oval in 1951 and 1952 under AAA sanctioning.  38 years later Champ Cars returned to Denver with a CART-sanctioned event downtown near the Civic Center.  However, like the previous incarnation, that race also lasted only two years.  CART returned to Denver in 2002 with a race on a 1.64-mile (2.64-km) temporary circuit around Pepsi Center.  The final race was held in 2006.  Champ Car initially put the race on its 2007 schedule but removed it after conflicts with other events could not be reconciled. Phil Caliva (born January 1, 1945 in Palermo, Sicily) is an Italian-born American racing driver who competed in the CART Championship Car series from 1979 to 1984.  After racing in the North American Formula Super Vee series in 1977 and 1978, he made his CART debut in 1979 driving for Spike Gehlhausen at Ontario Motor Speedway.  Caliva returned the next year and made five starts for Bill Alsup and tried but failed to qualify for the Indianapolis 500.  Caliva attempted a second time to qualify for the "500" for Alsup in 1981 but again failed to make the field.  He made 3 more starts later that year, including his best series finish of 8th place at the Michigan International Speedway in July.  He tried 3 races including the Indy 500 in 1982 but failed to qualify for all of them.  He tried the Indy 500 again in 1983 and missed the field again, but made the race at Riverside International Raceway in what would be his last Champ Car start.  He tried the Long Beach race and the Indy 500 again in 1984 but again missed both races. The 2002 Gran Premio Telmex-Gigante was the nineteenth and final round of the 2002 CART FedEx Champ Car World Series season, held on November 17, 2002 at the Autódromo Hermanos Rodríguez in Mexico City, Mexico.  It was the first Champ Car race at the track since the 1981 season.  The race preceded a mass exodus of significant drivers and teams who all competed in their final Champ Car event, most of whom knew beforehand that they would not return.  Most rued the fact that they were leaving for the rival Indy Racing League, wishing to continue in CART rather than endure a more stable future in the IRL.  CART's winningest driver (42 wins), Michael Andretti, along with Kenny Brack, Scott Dixon, Dario Franchitti, Tony Kanaan, and Japan's most successful driver in U.S. open wheel racing Tora Takagi would all bid CART adieu in favor of the IRL.  Other entities leaving CART included 1996-1999 champions Chip Ganassi Racing, 1995 champions Team KOOL Green, and Mo Nunn Racing permanently switched to the IRL, and Japanese automotive industry giants Honda and Toyota likewise left CART for the IRL.  Season champion Cristiano da Matta was set to leave CART for Formula One with his engine supplier's F1 team, and Christian Fittipaldi attempted a stock car career. The Coors International Bicycle Classic (1980–1988) was a stage race sponsored by the Coors Brewing Company.  Coors was the race's second sponsor; the first, Celestial Seasonings, named the race after its premium tea Red Zinger, which began in 1975.  Over the years, the event became America's national tour, listed as the fourth largest race in the world after the Tour de France, Giro d'Italia, and Vuelta a España.  The race grew from 3 days of racing in its first years as the Red Zinger Bicycle Classic to 2 weeks in the later Coors Classic years.  Race stages were held in Colorado in the early years expanding first from Boulder and Denver back to the Keystone ski resort, later adding Estes Park, Vail, Aspen and Grand Junction, before further expansion that included Wyoming, Nevada, California and Hawaii.  All but the last year the race concluded with a short circuit in North Boulder Park.  On August 4, 2010 Colorado governor Bill Ritter and cycling legend Lance Armstrong announced that they would revive stage racing in Colorado with the USA Pro Cycling Challenge.  It was a seven-day race held in August 2011. The Caesars Palace Grand Prix was a car race held between 1981 and 1984.  For the first two years, the race was part of the Formula One World Championship, before becoming a round of the CART series in 1983.  Nissan/Datsun was a presenting sponsor of both races. Luiz Garcia Jr. (born May 4, 1971) is a Brazilian race car driver born in Brasilia.  He raced in Brazilian Formula Ford 1600 in 1991 and British Formula Vauxhall in 1992 and 1993. In 1994 and 1995, he raced on European Formula 3.  He then raced in the Indy Lights series in 1997 and 1998 finishing 13th and 12th in series points in his two seasons, capturing a single win in 1998 at Cleveland.  He made his CART debut at the 1999 season opener at Homestead-Miami Speedway for Dale Coyne Racing.  After 7 races with Coyne he moved to Hogan Racing where he made three more starts.  In 2000 he returned and ran a full season in the #25 Arciero Project Racing Group Reynard-Mercedes sponsored by Brazilian companies Hollywood and Embratel.  He scored 6 points, good enough for 27th in the championship, with a best finish of 11th at the Michigan 500.  He returned for the first two races of the 2001 season with Coyne before poor finishes and a lack of funding ended his CART career.  He has not driven in a major professional auto race since his last CART appearance. Dean Vetrock (born November 5, 1954) is a former American racing driver from Racine, Wisconsin.  He competed primarily in the Formula 5000 series and then its successor, the F5000-based Can-Am formula.  In June 1981 Vetrock and his friend Larrie Ervin entered an aging chassis in the USAC "Gold Crown" Championship Car race at the Pocono Raceway and were invited to enter a car in the 1982 Indianapolis 500.  By participating in the Pocono race, Vetrock was also suspended from racing in CART for 60 days despite never racing in a CART event, though the decision was later reversed.  Vetrock and Ervin purchased a newer chassis for the Indy 500 and were given a garage stall that A. J. Foyt Enterprises typically used to store its tools.  However, they blew their only race engine on the second day that the car was on track without completing a practice lap.  Vetrock returned to Can-Am, eventually retiring in the late 1980s and Ervin retired from race team ownership. Guido Daccò (10 September 1942 – 29 July 2006) was an Italian race car and motorcycle racer from Limbiate.  He began motorcycle racing in 1969 and from 1980-1984 he raced in Formula 2.  He then drove in the 1985 24 Hours of Le Mans and began racing in Formula 3000.  In 1988 he moved to the United States to drive in the Indy Lights series where he placed 10th in series points.  In 1989 he made his CART debut for Dale Coyne Racing.  Dacco had little success in CART and bounced from team to team until 1992, making 23 starts with a best finish of 12th.  He failed to qualify for the Indianapolis 500 in his attempts in 1990 and 1991.  He returned to Europe in 1992 to drive 2 races in German Formula 3 and then retired from racing.  He made occasional drives in historic races and managed an FIA GT team. Sunrayce 99 was an intercollegiate solar car race sponsored by General Motors, EDS, and the US Department of Energy.  The race began on June 20, 1999 in Washington, D.C. and finished on June 29, 1999 at Epcot Center in Orlando, Florida.  The event was won by the University of Missouri at Rolla (now Missouri S&T).  Sunrayce 99 was the fifth and final race in the Sunrayce series and was followed by the first American Solar Challenge in 2001.  The overall success of the event was limited by difficult weather conditions.  Teams battled clouds and rain throughout the race, and no team avoided having to trailer their car for at least part of the race route.
Answer: Nissan/Datsun