Walmart unveils prototype truck

Walmart's 'Transformer" looking truck was designed by at least 3 companies.

Walmart has unveiled a futuristic truck at the Mid-America Trucking Show this week.{} And it looks like a vehicle out of a Transformers movie.

A picture of the truck has gone viral on the Internet.

Walmart officials say the new truck is more sustainable and aerodynamic than its current fleet.

At least three companies helped to build the prototype.

They include Great Dane Trailers, Peterbilt and Roush Engineering.

But officials say it may never make it to the road.