Volvo invited us to Las Vegas to drive the new S80. Our test cars were European specification, equipped with metal strips of trim on the dashboard rather than the wood that will be standard on North American models, a parabolic driver’s side mirror, and kph displays. We drove the S80 3.2 the first half of the day and the S80 V8 AWD the second half of the day. The second half of the day was far more satisfying.