Drivatars all driving old Jaguars

How come suddenly, after 3 months of playing this game, is every drivatar in every race (except custom races) are driving old Jaguars, there’s no variety, no liveries.
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Just an update: I was hoping after the season changed to spring this morning that might just solve the problem but NO LUCK. It really does ruin the fun and games away from the realism when you see 10-15 late 80’s jag’s passing you in a cross country or dirt rally as they race across the hills, through the woods and stuff.