Car configuration does not influence routes

🚧 THIS IS A TICKET MIGRATED FROM UPVOTY. The original ticket and comments will be available for a limited time over at:
https://abrp.upvoty.com/b/report-a-bug/car-configuration-does-not-influence-routes/
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I started a premium subscription to access car configurations so I could compare estimated usage between my car by itself and my car hauling a trailer or caravan. To my disappointment, this does not change anything to the estimated usage and range when I plan a route.