Winnebago's motor homes, or RVs, have set the standard since the 1960s. But now they have upped the ante with their newest cross-country colossus, the Vectra. Offering 400 square feet of living space, the Vectra even includes a giant basement. From the chassis factory in Gaffney, SC, to the "Big Bertha" mega-plant in IA, visit the Ultimate Factories that create the ultimate home away from home on the open road.

NGC takes you to Bowling Green, Kentucky, where GM is developing the new Corvette Z06, a high-performance street machine that is fantastically aerodynamically efficient.

Millions depend on UPS. Step inside the largest package delivery company on the planet, delivering 4 billion packages a year.

Go inside fire trucks mammoth 800,000 sq.ft. operation, where over 1,500 highly skilled workers mix muscle and high-tech tools to create made-to-order rigs in approximately 45 days.

The name BMW is synonymous with performance, precision, engineering, a fastidious quality. Obsessively designed, owners drive the "ultimate driving machine" for the sheer pleasure of controlling a mechanical marvel on the open road and feeling G-forces in their gut. Now, NGC takes viewers inside the creation of BMW's newest sports cars: the Z4 Roadster. See first-hand how this $45,000 ultimate roadster, with its unique styling and flawless quality, is built by three ultimate factories.

Lamborghinis factory in SantAgata Bolognese, Italy [ALT: 20 miles/30 kilometers north of Bologna) is building its fastest car ever the Murcielago SV, of which just 350 will be made. The $450,000 Murcielago SV launches from 0 to 62 miles per hour in just 3.2 seconds and can achieve a top speed of 212 miles per hour. The factory builds the car almost entirely by hand including its engine and body. The car is also painted and assembled by hand, including installation of the famous Lamborghini scissor doors. Every car is custom-built to order, and only 2.7 cars are completed per day.