AI Voice Agents That Negotiate and Close on Spinny's Supply Side

About Spinny
Spinny is India's most trusted full-stack platform for buying and selling used cars. Operating a network of physical Car Hubs alongside its digital marketplace, Spinny lets customers browse over 10,000 inspected vehicles online, book test drives at a hub or at home, and complete purchases backed by a 200-point inspection, a 5-day money-back guarantee, and an assured resale value. On the supply side, Spinny sources vehicles directly from individual sellers and local dealers, inspecting, pricing, and reconditioning every car before it reaches a hub for resale.
The Challenge
1. Inconsistent Seller Negotiation Buying a used car from an individual seller involves sensitive price negotiation grounded in inspection findings. Negotiation quality varied heavily from agent to agent, and inconsistent handling led to lost deals or overpaying for cars.
2. Home Inspection Scheduling Fell Through Booking a home inspection is only useful if the seller is actually present when Spinny's inspection representative arrives. Manual confirmation calls were often skipped under agent workload, leading to wasted inspection trips.
3. Limited Capacity to Reach Every Seller Lead With sourcing volumes rising across cities, human buying agents could not keep pace with the number of seller leads that needed a hub-information call, a negotiation conversation, and a scheduling follow-up.
The Solution: Voice Agents That Inform, Negotiate, and Confirm
CallKaro AI deployed a voice agent for Spinny's supply/buying funnel that handles the full seller journey — sharing hub information, negotiating price using the actual inspection report, booking home inspections, and confirming the seller will be present.
- Hub Information & Seller Confirmation The agent walks sellers through hub location, process, and documentation needed, and secures confirmation that the seller is ready to bring the car in for inspection or to have it inspected at home.
- Inspection-Backed Price Negotiation Using the car's inspection report, the agent negotiates price on the call with concrete, defensible arguments (e.g. specific wear-and-tear or component findings) rather than a flat take-it-or-leave-it offer.
- Home Inspection Scheduling & Presence Confirmation For sellers who prefer a home inspection, the agent captures address and timing details, books the visit, and runs a confirmation follow-up call to make sure the seller will be present when the inspection representative arrives.
How CallKaro AI Powers Spinny's Supply Funnel
- The voice agent calls the seller lead and shares clear information about the nearest Spinny hub, the inspection process, and what's needed to sell the car.
- Once the car has been inspected, the agent calls back and negotiates price directly with the seller, citing specific points from the inspection report to justify Spinny's offer.
- If the seller opts for a home inspection instead, the agent captures address, preferred time window, and vehicle details, then books the appointment with Spinny's scheduling system.
- Ahead of the scheduled visit, the agent runs a confirmation call to verify the seller will be present, reducing wasted trips for Spinny's inspection representatives.
Results
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Higher Lead-to-Sale (L2S) Conversion Consistent, inspection-backed negotiation on every call has lifted the share of seller leads that convert into completed purchases for Spinny.
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Fewer Wasted Inspection Visits Presence-confirmation follow-up calls have reduced no-show home inspections, improving the productivity of Spinny's field inspection teams.
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Scalable Seller Outreach The voice agent handles hub-information and negotiation conversations at a volume no human buying team could match, without sacrificing negotiation quality.