Southwest Nebraska's Chevrolet and Buick Source and Largest Callaway Dealer in America. Visit us for the largest selection of Corvettes and Camaros around. In business for over 83 years and four generations we are the people you can trust to give you the best experience ever when buying, or servicing your vehicle. Visit both of our Chevrolet & Buick Dealerships located in Imperial and Wauneta Nebraska.