2000 JAGUAR XJR Electrical System Problems

I WAS DRIVING IN THE MIDDLE LANE OF A 5 LANE FREEWAY AT 65MPH WHEN WITHOUT ANY WARNING I LOST ALL POWER AND THE ENGINE BEGAN TO COAST AT 15MPH. WITHOUT POWER STEERING OR BRAKES I WAS FORTUNATE ENOUGH TO GET TO THE RIGHT SHOULDER. I HAD THE CAR TOWED TO MY DEALER WHO TOLD ME THAT BOTH THE ALTERNATOR AND BATTERY HAD FAILED. THEY REVIEWED THE COMPUTER FAULT WARNINGS TO CONFIRM THAT NO WARNING WAS EVER REGISTERED BY THE SYSTEM. A TOTAL BATTERY FAILURE LESS THAN 10 MINUTES AFTER A NORMAL START IS ODD AND NO WARNING IS INEXCUSABLE, AS IS THE TOTAL ALTERNATOR FAILURE WITHOUT SYSTEM NOTIFICATION. *TR

JAGUAR IS A GREAT CAR MANUFACTURE BUT I BELIEVE ALL 98-2000 JAGUAR V8'S SHOULD BE CONSIDERED LEMON'S IF THEY HAVE NOT YET BEEN RETROFITTED WITH THE LATEST TIMING CHAIN TENSIONER DESIGN JAGUAR CURRENTLY USES. THESE CARS ARE TICKING TIME BOMB'S IF THEY HAVE NOT. ACCORDING TO MULTIPLE FORUMS AND VARIOUS JAG ENTHUSIAST WEB SITES JAGUAR NEVER PUT OUT A RECALL ON THIS PARTICULAR MATTER; RUMOR HAS IT THAT THEY DID NOT WANT THE RECALLS JEOPARDIZING JAGUAR'S REPUTATION BUT IT SEEMS TO ME THAT IT HAS ALREADY BEEN JEOPARDIZED BY THEM NOT WANTING TO ACCEPT FULL RESPONSIBILITY FOR ALL THESE V8'S FAILING DUE TO MALFUNCTIONING TIMING CHAIN TENSIONERS; THE VERY INCIDENT THAT OCCURRED WITH MY 2000 JAGUAR XJR WITH ONLY 80K MILES THIS IS JUST UNHEARD OF. THIS IS JUST A FEW OF THE PROBLEM'S THIS VEHICLE HAS GIVEN ME. SOMETIMES IT GOES INTO "RESTRICTED PERFORMANCE MODE" AT THE MOST UNSAFE...