Talk:RR3 Wiki:Upgrades Strategy For 100% Completion/@comment-27814461-20170215183656/@comment-26829117-20170222121016

It means that this vehicle would be more expensive in terms of gold upgrades than the recommended car. They car in green is the vehicle that gives the cheapest upgrade path (to the best of our calculations). Other cars may be able to complete the series but they are generally on a more expensive upgrade path to 100% completion either because they are more expensive in this series or because the path it takes you down will be more expensive later.