I've noticed big discrepancies in how cars are valued depending on where you look.
Through my work, I have direct access to a One Auto API key, so I built some software to help me with my car search (ES300h or Camry).
Carzone gets its valuations from Cartell - and you’d assume the numbers would match, but they rarely do. Throw Brego valuation (again via API) into the mix, and you get a completely different set of figures again.
Here is the data on two very similar 2022 Toyota Camry Platinums I was looking at recently:
Car A: 2022 Camry (55k km)
- Franchise Main Dealer Asking Price: €39,950 (sitting for ~600 days on forecourt).
- History: very clean, single owner, all main dealer stamps, but condition "good" due to noticeable wear
- Valuations
- Cartell (OneAutoAPI): Retail €33,450 · Trade €25,100
- Brego (OneAutoAPI): Retail low/avg/high €30,437 / €31,855 / €33,336
- Carzone (website, "data from Cartell"): Retail: Excellent €33,900 · Good €29,850 · Fair €25,750 Trade-in: €25,450/€21,350/€17,300
- My offer: I didn't bother - asking too high and I didn't like the wear (spoke to an upholsterer who said it'd be nearly impossible to fix permanently)
Car B: 2022 Camry (60k km)
- Off-brand Main Dealer Asking Price: €36,950 dropped to €35,950 due to a "summer sale"
- History: Cleanish, but reported as 4 owners - dealer claims garage moves are 3 of those.
- Valuations
- Cartell (Full History Check): €30,850 (if Excellent)
- Cartell (OneAutoAPI): Retail €32,400 · Trade €24,300
- Brego (OneAutoAPI): Retail low/avg/high €28,698 / €30,104 / €31,563 · Trade €24,393/€25,588/€26,828
- Carzone (website, "data from Cartell"): Retail: Excellent €32,700 · Good €28,800 · Fair €24,850 · Trade €24,550 pulled by dealer live in front of me - he only mentioned the "Excellent" valuation, despite the car being "Good" at best.
- My offer: €30,000 with €10k down immediately - soundly rejected
- Counter offer: €500 off the asking to make it €35,450 - still 3k above the Carzone "Excellent" valuation and over 6k above the "Good" valuation.
One issue is the paid history check probably brought Car B's value down to €30,850 because it factored in the 4 previous owners. I suspect Carzone kept it at €32,700 because it likely only looks at age and mileage.
Cartell API, the paid Cartell History Check, and Carzone should be same data via three different channels but disagree by up to €1,850 on the same car. And then the dealers are asking
But still, that's a huge difference between asking and these valuations. How much weight do you (or the dealers) actually put on the back-end API valuations and what Carzone spits out?