https://wccftech.com/tesla-semi-truck-preorders-walmart/ >Tesla introduced its electric tractor trailers last night along with its surprising unveiling of Tesla Roadster. The company is already winning some big contracts as Walmart has announced preordering 15 of these new giant Tesla Semi trucks. The pilot is planned for the United States and Canada with 5 vehicles for Walmart US and 10 for Walmart Canada, the retailer has said. >Considering this quick post-unveiling announcement, it is likely the deal was done before the battery powered mammoth vehicles were shown off to the world last night. “We have a long history of testing new technology – including alternative-fuel trucks – and we are excited to be among the first to pilot this new heavy-duty electric vehicle,” the world’s biggest retailer said in a statement.