Edema is the medical term for swelling. Body parts swell from injury or inflammation. It can affect a small area or the entire body. Medications, infections, pregnancy, and many other medical problems can cause edema. Edema happens when your small blood vessels become leaky and release fluid into nearby tissues.
Audi's adaptive cruise control is available on most models as part of the Advanced Technology Package or Driver Assistance Package. BMW's adaptive cruise control is available on most models as part of the ACC Stop & Go + Active Driving Assistant addition to the Driver Assistance Plus package.
Seats are heated and there are massage pads which can be programmed to gently pummel tired backs. The sixth generation BMW 7 series has extras including ambient lighting, massage pads and scented air.