Your vehicle and evidence
How vehicle condition affects an appraisal
Canadian Black Book’s Average Wholesale Value describes a typical vehicle of your year, make, model and trim — not the specific vehicle you’re buying. A completed appraisal, backed by evidence of your vehicle’s actual condition, is how that difference gets captured.
Essential facts
- The benchmark describes a typical vehicle — not yours.
- Evidence of actual condition is what can support a different value.
- Every submission is reviewed; there is no customer-facing calculator.
- Poor condition does not guarantee a useful appraisal, and more photos do not guarantee a lower value.
Benchmark vs. your actual vehicle
The benchmark is a general market reference point for a typical vehicle of that year, make, model and trim — not a measurement of the specific vehicle you’re buying. See Why Canadian Black Book may affect PST for why the benchmark is used at all. This guide covers what kind of evidence actually supports a different value for your specific vehicle.
What kind of evidence matters
Broad categories that may be relevant to a review, depending on your vehicle:
Mileage and use
Your vehicle’s actual odometer reading and how it’s been used.
Exterior, body and glass
Dents, paint condition, rust spots, windshield or window damage.
Tires, wheels and visible wear
Tread condition, wheel damage, general wear consistent with age.
Interior condition
Upholstery wear, smoke, pet or odour issues.
Mechanical condition
Warning indicators, known mechanical issues, service history.
Accident, repair and title history
Prior accidents, repairs, and how the vehicle’s title reads.
Corrosion
Rust beyond ordinary surface wear, especially structural or underbody.
Modifications or missing equipment
Non-standard parts, missing factory equipment, or unusual configuration.
Repair records and documentation
Invoices, service records, or other paperwork supporting the vehicle’s history.
These are examples of the kind of evidence a review may consider — not a checklist that guarantees a particular outcome, and not every category applies to every vehicle.
Useful evidence
Clear photos from multiple angles, an honest description of the vehicle’s condition, and any supporting documentation you have (service records, invoices, prior inspection reports) all help. The more complete the picture, the more confidently Underbook’s review can work with what you’ve provided.
What Underbook can and can’t determine remotely
Underbook can review the photos, descriptions, documents and history you provide. Underbook cannot perform an in-person mechanical inspection or independently verify a claim you haven’t supported with evidence.
Reviewed, not calculated
Underbook reviews every submission. There’s no customer-facing calculator that turns a checklist of issues into an appraisal, and Underbook does not publish its internal deductions, adjustment logic or appraisal methodology.
Underbook does not display raw Canadian Black Book benchmark values to customers.
No outcome is guaranteed. Poor condition does not guarantee a useful appraisal, and more photographs do not guarantee a lower appraised value — Underbook tells you plainly, at no charge, when an appraisal wouldn’t genuinely help.
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