Prompt Details
Model
(claude-5-5-sonnet)
Token size
530
Example input
[Car Details]: 2016 Toyota Corolla, 95,000 miles
[Budget and Price]: Budget $11,000; seller asking $12,500
[Usage]: Daily commute of about 30 miles
[Seller Claims]: Second owner, regular dealer servicing, no accidents
[Priority]: Reliability and low running cost
Example output
QUICK SUMMARY
A 2016 Toyota Corolla with 95,000 miles is generally a sensible match for a 30-mile daily commute and your priority of reliability and low running cost. The asking price ($12,500) is above your budget ($11,000), so the gap is something to negotiate or walk away from. Condition and service history matter more than the badge, so verify everything.
INSPECTION CHECKLIST
Exterior:
- Check panel gaps and paint color match on every panel (mismatch can mean accident repair)
- Look for rust on door bottoms, wheel arches and under the trunk lid
- Check all lights, lenses and the windshield for chips or cracks
Interior:
- Test every button, window, lock, mirror and the air conditioning (hot and cold)
- Check seat wear and pedal wear against the claimed mileage
- Look for water stains or a damp smell under floor mats
Engine bay:
- Engine should be cold when you arrive; ask the seller not to warm it up
- Check oil level and color, coolant level and brake fluid
- Look for leaks, cracked hoses and a corroded battery
Undercarriage:
- Look for oil or fluid drips under the car and for rust on the frame and exhaust
Tires:
- Check tread depth, matching brands and even wear (uneven wear can point to alignment or suspension issues)
Electronics:
- Check all warning lights come on at start and then go off
- Test the infotainment screen, Bluetooth and all USB or charging ports
COMMON PROBLEMS TO CHECK
These are general patterns for this type of car and age range, and they may vary by individual car:
- Automatic or CVT behavior: look for jerky acceleration, whining or delayed response
- Air conditioning performance and any unusual compressor noises
- Brake and suspension wear, which is common on commuter cars with regular mileage
- Oil leaks around gaskets as the car ages
- Check the service records for regular oil and transmission fluid servicing
QUESTIONS TO ASK THE SELLER
1. Why are you selling the car?
2. How long have you owned it, and who owned it before?
3. You said it was serviced at a dealer. Can I see the invoices?
4. When was the last oil change and the last major service?
5. Has the transmission fluid ever been changed?
6. You said there were no accidents. Can I see the history report, and are there any repairs not on it?
7. Has any panel been repainted?
8. Are there any warning lights or problems at the moment?
9. Is the car used for anything other than commuting?
10. Are there any open recall repairs that were not completed?
11. May I take it to my own mechanic for an inspection?
12. Is the price negotiable?
RED FLAGS
1. The seller refuses an independent mechanic inspection
2. The seller says the service records are "lost" while claiming dealer servicing
3. The VIN on the car does not match the VIN on the papers
4. Mismatched paint, uneven panel gaps or fresh overspray
5. Mileage looks too low for the car's wear
6. The engine is already warmed up when you arrive
7. Pressure to pay a deposit immediately
8. The seller will not meet at their own address or the name on the papers does not match
9. Warning lights that stay on or have been disabled
10. A strong smell of air freshener or damp inside
TEST DRIVE PLAN
- Start from cold and listen for rattles or grinding
- Drive at low speed, medium speed and highway speed, since your commute uses highways
- Accelerate gently and firmly and feel for smooth gear changes
- Brake gently and firmly on a safe road; the car should stop straight with no pulsing
- Drive over bumps and listen for clunks
- Find an empty road and check that the steering stays centered
- Test the air conditioning and every feature while driving
- Park and check again for leaks and smells
PAPERWORK CHECKLIST
- Ownership papers and the seller's identity, matching the name on the title
- VIN check on the car against the documents
- Vehicle history report (accidents, ownership, mileage records)
- Service records and invoices
- Open recall check using the VIN on the official recall database
- Written bill of sale and transfer paperwork
- Do not pay in full until the papers are checked and signed
NEGOTIATION SCRIPT
Script 1 (polite opener): "I like the car, but it's above my budget of $11,000. If the inspection looks good, would you consider coming down to a price closer to that?"
Script 2 (after inspection findings): "My mechanic found items that need attention. Based on those repair costs, I can offer [your number]. Can we meet there?"
Script 3 (firm close): "I'm ready to buy today at [your number] if the paperwork is clean. If that doesn't work, I understand, and I'll keep looking."
Tips: Check comparable listings yourself before you negotiate so your offer is based on real data. Negotiate after the inspection, not before. If the seller refuses, stay polite and be ready to walk away.
FINAL DECISION GUIDE
Buy if: the mechanic inspection is clean, the history report matches the seller's claims, service records exist and the price fits your budget.
Negotiate more if: minor repairs are needed or the price is above your budget.
Walk away if: the seller refuses inspection, the papers do not match, there are signs of hidden accident damage, or the price cannot get near your budget.
REMINDER
Always get a professional mechanic inspection and a vehicle history check before paying. Rules, documents and fraud patterns vary by country, so confirm your local requirements.
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CLAUDE-5-5-SONNET
Buy a used car with confidence. Enter the car details, your budget, how you will use it, what the seller told you, and your priority, and get: an inspection checklist, common problems to check, questions for the seller, red flags, a test drive plan, a paperwork checklist, a negotiation script and a final buy or walk-away guide. Perfect for first-time buyers, families, students and anyone shopping for a second-hand car. Avoid costly mistakes and negotiate smarter.
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