Buick's top 10 nearest neighbors span automotive brands, auto parts retailers, a pizza chain, a hardware cooperative, a budget hotel, and a powersports manufacturer — with no single entity pulling far ahead of the rest. Scores run from 0.97 down to 0.93, a narrow band that defines the flat shape.

The automotive cluster is real but not dominant. Ford Motor Company (0.96) and Dodge (0.95) are the fellow Car Makers in the top 10, joined by NAPA Auto Parts (0.96) and CARQUEST Auto Parts (0.95) from the Parts and Accessories subcategory. That's four of the ten neighbors drawn from Automotive — a plurality, but not a majority. The remaining six come from entirely different categories: Godfather's Pizza (0.97) is the single highest-scoring neighbor and sits in Fast Casual Dining; Do It Best (0.94) is Home Improvement and Hardware retail; Auto Value (0.94) adds a third Parts and Accessories entry; Polaris (0.93) is classified under Motorcycles; Ram (0.93) is a Car Maker; and Super 8 (0.93) is a Budget lodging brand. The cross-category spread — pizza, hardware, budget hotels, powersports — alongside the automotive names points to a shared audience profile rooted in something broader than vehicle preference alone.

The flat shape here reflects an audience that overlaps evenly with a wide mix of rural and small-town American brands rather than clustering tightly around any single category or competitor.