Amаzоn аnnоunced thаt it has jоined with General Motors and Volvo to offer in‑car deliveries. The service will be free to Amazon Prime members who own certain newer model GM and Volvo models. GM and Volvo gain the ability to offer a no-cost perk to current owners, while providing a potentially differentiating feature for new‑car shoppers. Based on the Kano model, this is an example of [what]