Council3 experts · 1 synthesis
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The council recommends

On: "Should I buy a new car or a used one?"

Top pick

Buy a 2- to 3-Year-Old Certified Pre-Owned (CPO) Car

A late-model CPO vehicle sidesteps the brutal first-wave depreciation while saving you roughly $23,000 compared to average new car transaction prices. You retain manufacturer warranty backing and late-model safety tech without paying the $50,000 new-car premium. Choose new only if you secure near-0% promotional APR and plan to drive the vehicle for over a decade.
Runner-up
Buy brand new only if you secure promotional 0-1.9% financing and intend to keep it 10+ years.
Wildcard
Consider leasing an EV with heavy manufacturer tax credit pass-throughs to avoid depreciation entirely.
Best time
Act now if you find good CPO inventory, or wait for year-end dealer clearance events for new car promos.
95%
aligned
All experts unanimously recommend purchasing a 2-3 year old certified pre-owned vehicle over a new one.

Live context

Gathered Oct 6, 2026, 4:42 PM

New-vehicle average transaction price was $50,089 in August 2026, the first time it crossed $50,000 that year. In June 2026, the new-vehicle ATP was $49,758, up 0.6% year over year; Cox Automotive said price inflation remained below the long-term average. Used-vehicle listing p…

SourcesIs Now the Time to Buy, Sell, or Trade in a Car? - Kelley Blue BookUsed Vehicle Sales Pace Slows in May as Prices Climb Higher - Cox Automotive Inc.Cox Automotive
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Not on this panel
Claude Fable 5.1 and Gemini 3.1 Pro didn't sit on this council.
Council Pro seats the strongest model from every lab.

Where they agree

✓Steep initial depreciation makes new cars at ~$50,000 financially inefficient.
✓A 2-3 year old certified pre-owned (CPO) vehicle offers the ideal balance of value and warranty.
✓Very old, high-mileage budget cars should be avoided due to elevated market prices and repair risk.

Where they diverge

↔How strongly promotional new-car financing rates could sway the decision toward buying new.
↔The acceptable age range for a used vehicle, varying from 2-3 years to up to 4 years old.
↔The degree to which the roughly $23,000 upfront savings outweighs long-term ownership perks.
The 3 takes
GPT-5.6 Terra
Lens · TCO & Model Reliability
Recommends a 2-4 year old certified pre-owned model from a reliable brand to sidestep steep early depreciation.
78% confident
Claude Sonnet 5.5
Lens · Financing & Value Gap
Suggests a 2-3 year old CPO car unless subsidized new financing significantly closes the total cost gap.
68% confident
Gemini 3.8 Flash
Lens · Upfront Cost & Depreciation
Advocates for a 2-3 year old CPO or inspected used car to capture an upfront discount exceeding $23,000.
82% confident
InstinctJev · TypeSafeCostly to undoMostly personal taste
Instinct said used one (98%). The council agreed.

The shortlist, scored

InstinctGPT-5.6 TerraClaude Sonnet 5.5Gemini 3.8 Flash
new car
Only worth it if you keep it 10+ years and get subsidized near-zero APR financing.
2%
used one
Best value via 2-3 year old certified pre-owned models with clean history and warranty.
98%
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Synthesized from 3 independent expert passes. Treat as informed input, not a guarantee. Your own judgment is the final vote.