AUC warranty for the win.
X5 (2008 - 80,000 mls) brakes were feeling a bit juddery and I noticed some heat damage on discs. Took it in to get a service and get them to look at the brakes. Later that day I pick my car up with two new front discs, new front pads and a new caliper, all under warranty.
3 days later, the rear suspension decides to drop, airbag has gone. Go to dealership, collect courtesy X5, 3 days later get car back with new airbags in the rear suspension, again under warranty.
Pretty chuffed with that on a 6 year old car that's 15 months into a 2 year AUC warranty.