Pick your car's make, model, year and mileage. The estimate is computed from real market listings for that exact make and model, not a generic formula.
Depreciation is not linear, and it is not the same across models. Rather than fitting one generic curve, each estimate is computed from real listings and transactions for your exact make and model, at the age and mileage you entered.
Sample size drives confidence. A model with dozens of comparable listings at a given age gets a tight corridor. A rare or niche model with only a handful of listings still gets an estimate, but it is marked as lower confidence — treat it as a rough anchor, not a quote.
The depreciation curve plots the same model's value at each age we have data for. Gaps in the curve mean there were not enough listings at that specific age to publish a reliable point — the line still connects the ages we do have data for.
The calculator returns a market corridor, not a fixed price, computed from real listings for your exact make and model. Individual condition, colour, options and region can still move a real sale price by 10–15% in either direction. For a binding valuation Germany uses the Schwacke system, which dealers and insurers reference.
Confidence reflects how many comparable market listings back the estimate. High confidence means dozens of listings at a similar age; low confidence means only a handful — the number is still shown, but should be treated as a rough starting point rather than a quote.
Each point on the curve needs a minimum number of listings at that specific age to be considered reliable. If too few cars of that age were listed, we skip the point rather than publish an unreliable number.
Yes — as a starting point. Cross-check against current asking prices on major German used-car portals, subtract a realistic negotiation margin, and document the car's condition.