Summary

Using stepwise methods in Linear Regression, you have selected a "best" model for predicting motor-vehicle sales. With this model, you found two vehicle models that were underperforming in the market, while no vehicle was clearly overperforming.

Diagnostic plots of residuals and influence statistics indicated that your regression model may be adversely affected by the Metro. Removing this case and rerunning the analysis to see the difference in the results would be a good next step.

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