Check for rusty sump as it will go porus and weep oil. Ive just done mine and while the exhaust was off I removed the heat shields. No more rattling thank god.

When you test one drive it hard as the inlet manifold doesnt change over untill 5K revs and they rev to over 7K. There should be a noticable exhaust note change at 5K. If not there could be issues with the inlet manifold runner control module.

I really like mine as its a perfect family car.