All told, the changes should help the big four-door yield a 14 percent improvement in fuel economy over the old naturally aspirated 5.0-liter V8 ... model year generation XJ. It benefits from ...

Make no mistake, the new Jaguar ... picked the XJ 5.0L V8 in £74,355 ‘Portfolio’ spec (‘well posh’ in other words) for our first drive of the new XJ on British roads, this model having ...