No matter how you look at it, this is a disappointing result for the XC90. ItÂ’'s one of the firmÂ’'s most popular models, but you tell us that thereÂ’'s plenty of room for improvement. On the plus side, you love the practicality. In fact, no other car can top the 4x4 for sheer usability. This does, however, come at a price –– literally. A position of 96th in the running costs chart suggests it attracts some hefty fuel and servicing bills. And 97th overall for performance means that drivers are in real need of more power.