Never pay a deposit before seeing the car. Stay safe →
Skip to content
Cruizy

How scores work

What the numbers on a listing mean, how we calculate them, and their limits.

DRAFT for legal review. This methodology is published for transparency and will change as we learn.

Every listing shows a Cruizy score out of 100, with its breakdown, the score version and the date it was calculated. Sellers can’t set or buy a score; we recalculate it automatically within seconds of every edit.

The Cruizy score (version ls-1)

It combines three parts: Story (50%), Price (35%) and Confidence (15%). When a part can’t be calculated (for example, there isn’t enough market data for a fair price guide) its weight is shared across the others rather than counting as zero.

Story score (version st-1)

How complete, specific and honest the listing is. It is not a judgement of the car’s mechanical condition.

  • Completeness: the condition questions answered, including honest “not sure” answers: 30%
  • Specificity: concrete details (service dates, kms, what was fixed) rather than vague claims: 15%
  • Honesty: faults and history disclosed, and no contradictions between answers and description: 15%
  • Photo coverage: the key angles (front, rear, sides, interior, odometer, engine bay, tyres): 20%
  • Photo quality: sharp, well-lit, not duplicated or stock images: 10%
  • Evidence: service records, receipts or reports: 10%

Declaring a fault never lowers the story score: disclosure raises the honesty part. Sellers below 80 see at least three specific tips to improve.

Confidence

How much of the listing is backed by official records rather than the seller’s word. Facts from official sources (for example, the vehicle register and WOF odometer readings) are labelled Official and can’t be edited by the seller. Everything else is labelled Seller. Hover or tap a label to see the source and date.

Price guide (version pr-1)

The price guide is in testing and isn’t shown on listings yet. We calculate it behind the scenes to check its accuracy before anyone relies on it.

We compare the asking price with similar cars (same model and generation, similar age and kms, region-adjusted) listed or sold recently. Badges:

  • Great price: at or below 92% of the expected price
  • Good price: up to 98%
  • Fair price: up to 105%
  • Above that we show no badge; we never label a price “bad”.

We only show a price badge when we have enough evidence: at least 8 comparable cars of the same generation (or 15 of the model) in the last 180 days, including at least 3 sold, and an expected-price range no wider than ±35%. A price far below the market (under 70% of expected) gets no badge and a gentle “check carefully” note instead, because it’s a common scam pattern.

What scores don’t tell you

  • They are not an inspection. Get a pre-purchase inspection from an independent mechanic.
  • They don’t check for money owing. Search the Personal Property Securities Register before you pay.
  • They don’t guarantee the seller’s answers are true. Ask questions and see the car in person.

See also how search ranking works and our safety tips.