Another to add to the list Lace.
I found three references to "the spare tire" [sic] in Cristovao's book but the Renault Grand Scenic carries its spare wheel under the car where one is fitted. There is no spare tyre boot well in the Grand Scenic, only the shorter Scenic has this feature. The small compartment in the boot is where the tools and puncture repair canister are stored.
From the book...Ch 10 and CH 13
"Second, when they detected the odour of death on the key of the car that they used, which was rented more than twenty days after the little girl went missing. In the same car where they found traces of blood and hair under the spare tire."
"But then, chief, what about the residues that the dogs detected inside the Renaul Scenic? Francisco questions.- Well, that really messed the whole picture up, because finding that type of residues in the area that is located just beneath the spare tire is a complicated matter; come to think of it, it’s not really that complicated… or at least not to me – the chief replies, smiling.- Sure – Francisco continues – one thing is to transport clothing that might have carried traces from the child. They did move house twice, after all, didn’t they? Another entirely different matter is the location of the dog’s findings. Precisely the spot where one would hide things inside a car, right? In the cavity for the spare tire, more precisely beneath the tire. What a strange thing, chief."