Purchase advice RAV4 2nd generation

I’m looking for a vehicle for my mother. After she came first on Berlingo and Co with the specification “door at the trunk” and as far as possible sliding door at the back I “corrected” her towards Yaris Verso and she can now inspire by a RAV4 which is now traded as “favorite”. I tend to be 1.8 for cost reasons, or is the “fear” of the costs (multiple consumption fuel and maintenance costs all-wheel) unfounded for the 2l? Is there special P are there any vulnerabilities that are not normally found on the Internet (there are none)?