Another thought I just had: approach your design like you were an online car salesmen - not the Simplified Wikipedia of cars - or that you earned an affiliate c

Another thought I just had: approach your design like you were an online car salesmen - not the Simplified Wikipedia of cars - or that you earned an affiliate commission on every car "sold" through your site. That way, you would be more focused on better conversion rather than exhaustive classification, and have a completely different incentive. This would affect the categorization and user experience significantly.