My 2005 Jaguar XJ 3-litre petrol is wonderfully quiet, smooth and comfortable on long journeys, especially for my wife, who has a bad back. It has also been totally reliable and is reasonably economical (on the French Autoroute at a steady 80mph I get 31mpg on Shell V-Power). However, it's a very tight fit in our new garage and I am thinking of changing it for something smaller. Reliability, long-distance comfort and a quiet cabin are the main criteria. It has to be automatic and I have a slight preference for petrol over diesel since I only do about 8,000 miles a year. I shall be buying new. The new XJ is too big and the XF is only marginally narrower than my current XJ. I've considered a Lexus IS250 but would be grateful for your advice.