Executives in blue jeans sit cross-legged on the floor, surrounded by big boy toys like 3D printers and large tables with Exacto knives and foam core for people to congregate and make fast, rough prototypes.

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The V-TRUX line of big boy toys includes modified GMC trucks, SUVs and vans, customized to include a Volt-like powertrain that enables up to 40 miles of electricity-only driving before switching over to the onboard 4.8 liter V8.

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