Took the car to Toyota last week and they had it for a few days, They said that there were some clips which had come off the cv hence the oil and grease everywhere, They took it for a drive, and said that the vibration is being caused by both driveshaft's being shagged, It also took about 3 days before they could reproduce the vvti rattle, however they were able too and agreed that they? needed replacing. They sent the request to Toyota Extra Care with some photos and has all been approved, took the car back in today and should hopefully have it back in a couple days. So the Toyota extra care warranty is well and truly worth it if your ever given the option on a used car. Assuming there's a few thousand dollars in parts and labour there They also said the alternator was making a strange noise and is going to be replaced free aswell.