Personally both Audi and LR are more expensive. Maybe when something goes wrong then BMW are more expensive. Lots of factors hidden away though. The data needs to be normalised in some way, eg. As a factor of list price. That way you would see costs based upon initial outlay. You might see more expensive models costing more (or maybe less).
Other factors come into play against age too. Older cars are likely to get less spent on them.
The specific model probably has oddities in its ownership profile. Many company cars most doing frequent high mileages, some company cars as status and a fair few private status symbols doing few journeys.
The 292 journeys per year seems suspect. If you assume that the majority of trips involve an outbound journey and a return journey that equates to being used only every other day. For some cars that may be true, but, our dailies do at least 4 journeys per day. They might be idle whole days just once per month.
Think there’s lies, damned lies and statistics here. Not data I would trust in any way without some qualification.