The Toyota Tundra is a full-size pickup truck sold by Toyota that originally went into production in 1999 (as a 2000 model year model), replacing the Toyota T100. Although similar to the T100 in size, the first generation Tundra had a more American look and feel and ultimately had something the T100 never had, a V8 engine underneath its hood. The Tundra was nominated for the North American Truck of the Year award and was Motor Trend magazine's Truck of the Year for the year 2000 and 2008. As of 2007, the Tundra (now in its second generation) now holds 17% of the 1/2 ton full-size pickup market beating the GMC Sierra in monthly sales, but still behind the class leading Dodge Ram, Chevy Silverado, and the best-selling Ford F-150 (in overall sales). The newest Tundra is built in San Antonio, Texas, and Gibson County, Indiana (where the original Tundra was solely constructed).

The first generation Tundra had many similarities with the old Toyota T100 and the smaller, more popular Toyota Tacoma. The biggest of those similarities was the use of the 3.4 liter V6 engine which was the top of the line engine in both the Tacoma and T100, while it became the base engine within the Tundra. The then new Tundra had an optional 32 valve 4.7 liter V8 powerplant which ultimately became the most desired engine of choice. The first generation Tundra also became the model upon which the original Toyota Sequoia full-sized SUV was based. The two vehicles shared a host of parts and accessories including the 4.7 liter V8 engine, wheels, tires, transmissions and interior components among them.