One problem related to manifold/header/muffler/tail pipe has been reported for the 2008 Mini Cooper Clubman S. The most recently reported issues are listed below.
The oil supply line to the turbo on this car leaks due to a poor design. The part(s) used by the manufacturer are not suitable for the application and fail, causing not only an oil leak, but a potential turbo failure, and worse, the potential for an engine fire, as the oil leaks onto a hot turbo charger and exhaust manifold/downpipe. The oil line uses a compression fitting where it attaches to the turbo body. This fitting uses an internal rubber o-ring/seal that is subjected to high heat, and heat cycles every time the car is run. Rubber seals fail under these conditions! the manufacturer (Mini/BMW) is aware of the problem, and is doing nothing to correct it. (it's very expensive repair) instead, the manufacturer is providing a "band-aid fix" by supplying a "heat shield" that attaches to the fitting. This will do little-to-nothing to prevent the rubber o-ring from failing, nor does it fix a line that is already leaking. This failure occurs, typically, after the car is out of warranty. It's a serious design flaw, and should be a recall item due to the safety issue it creates.