A decision engine should show its limits.
PriceYourMotor should distinguish estimates, user-supplied evidence, partner quotes and executable offers rather than pretending every number is equally certain.
Price the car
Indicative estimate first, executable offer later.
Price the problem
Current repair plus recent repair exposure.
Price the change
Comparable replacement minus exit value.
Improve evidence
Ask only for evidence likely to change the route.
No partner should be able to buy a better result.
Commercial repair, sale and replacement options appear after the independent decision. That principle is central to trust.
Safety override
Dangerous MOT defects and unresolved safety-critical issues take priority over financial optimisation.
Evidence labels
Known, supplied, estimated, partner quote and executable offer should remain visibly different.
REVIEW is a valid answer
If evidence is weak or the routes are close, the system should ask for better information rather than force certainty.