There are too many sectors in typical car market maps, leading to over-segmentation. The market could instead be broken down by factors like engine size, usage type, driving pleasure versus practicality, price, and whether targeting families or singles. Customer service ratings from a magazine survey showed some retailers like Lush Cosmetics and John Lewis rated very highly with over 80% customer satisfaction, while others like Halfords and WHSmith rated poorly with under 60% satisfaction. For some low-cost brands, poor customer service may not negatively impact them as much as higher-end brands.