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.

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.

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.

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.

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.

The Season 4 opener spotlights the 2011 Dodge Challenger. The hour includes a tour of an assembly plant in Canada and a Mexican factory, where its famed Hemi engine is built.

An exotic car built to push performance to the edge while blending Italian elegance is crafted inside Maserati's ultimate factory. It takes 22 days for a Maserati to be assembled and considered road ready and the Maserati GranTurismo Convertible, a $135,000 convertible that tops out at more than 170 mph, is the new pinnacle of performance and comfort.

The hand-built production car, the Dodge Viper, is born, bred and built in Detroit, Michigan. Now NGC takes a unique insider's look at the Viper factory in the current model's last year of production. This ultimate factory is comprised of craftspeople who spend two and a half days building each Viper, which is packed with 600 horsepower that can take it from zero to 60 mph in under four seconds. Without any robots on this assembly line, every Viper is truly hand-crafted.

A Mercedes-Benz factory in Germany is visited for a look at the making of the 571-horsepower 2010 SLS.

It's been 50 years since Rolls Royce created a new Bentley fit for royalty and rock stars, and it's a challenge for Bentley's ultimate factories to construct the Mulsanne, a new design of the luxury car. It takes more than 550 hours and nine weeks for artisans and technicians to create this masterpiece. Precision robots ensure that this two-and-a-half-ton luxury car's body is flawlessly molded, but the finest leather is hand-sewn for Bentley's lavish upholstery.

The Jack Daniel's Distillery in Lynchburg, Tennessee is visited to see how the famous whiskey is made.

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A BMW plant in South Carolina is visited for a behind-the-scenes look at the making of the X3 in the Season 5 opener.

A Porsche factory in Leipzig, Germany, is visited for a look at the making of the Panamera, the company's first four-dour high-performance sports sedan.

A Mack Truck factory in Macungie, Pa., is visited for a look at the making of the Titan, which features a high level of customization, making automating the production process nearly impossible

A Frito-Lay factory in Perry, Ga., is visited for a look at the making and distribution of potato chips, cheese puffs and tortilla chips.

The building of a Ford F-150 is documented at the Dearborn Truck Plant in Michigan, which churns out more than 1200 trucks a day

The making of Bacardi rum is observed at a distillery in San Juan

A Ducati factory in Italy is visited for a look at the making of the Multistrada 1200 sport bike

A tour of Heineken's 250-acre flagship brewery in Zoeterwoude, Netherlands

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Enter the EA factory in Burnaby Canada and find out how the brilliant minds behind FIFA 12 took football off the field and turned it into a virtual masterpiece FIFA 12 is featuring on this weeks National Geographics Megafactories, with the documentary paying a visit to EAC to peak behind the curtain