XJ XJL Portfolio and Jaguar Certified. There's no substitute for a Jaguar! The car you've always wanted! Who could say no to a simply outstanding car like this fully-loaded 2016 Jaguar XJ? Top-of-the-lineup. Jaguar Certified Pre-Owned means you not only get the reassurance of up to a 5yr/100,000 mile limited warranty, but also a 165-point inspection/reconditioning, 24/7 roadside assistance, trip-interruption services, rental car benefits, and a vehicle history report.