Google Shopping and search
Split by tire class, group by size, budget for the season
Shopping campaigns split by tire class first: all-season, summer performance, winter, all-terrain and commercial. Those buyers behave differently, decide at different speeds and carry different margins, so they should not share a budget. Inside each class, product groups follow size, because a search containing 225/45R17 comes from someone ready to order.
Feed titles have to carry the full sidewall code, the brand, the model and the season, since that is exactly how the search is typed. Custom labels hold margin tier, stock depth and whether you can actually fill four of that size, because advertising a set you can only half ship is a refund in waiting.
Budget here is seasonal in a way few niches are. Winter demand arrives in a short window each autumn and vanishes again, and the stores that take it have campaigns, stock and installer capacity ready early. Negatives strip out used tires, retreads, puncture repair, mobile fitting services and the endless searches for tire pressure specifications.
