12 cylinder muscle car.

The 1987 Eurowest-Jaguar XJS Convertible is the sort of car that one would image that someone like World War 1 fighter pilot ace  Eddy Richenbacker might have chosen to drive.

The 1995 Aston Martin DB7 is a restyled 1995 Jaguar XJS

For the 1995 model year, Ford Motor Co. decided to restyle the Jaguar XJS and re-badge it the Aston Martin DB7. So the Jaguar XJS did not die after 1996, rather, it  lived on as the Aston Martin DB7.

                         1987 Eurowest Jaguar XJS

   This is a very rare 12 cylinder red convertible. This is a 1987 Eurowest Jaguar XJS convertible(Jaguar did not make a factory convertible of the XJS model until 1989). Only 50 of these cars were produced. These Eurowest cars were produced by Jack Kasarjian’s Triple K Investments company in Westlake Village, Calif.  Jack Kasarjian is and was a successful real estate developer. Jack Kasarjian owns the X-bats company that makes the baseball bats that Sammy Sosa(including his famous corked bat) and over 200 other major league baseball players use. Also, Jack completed in the 1976 Olympics.        
   This car has been totally restored. I have invested over forty thousand dollars on it, and I have all the receipts. If any of the rest of the 50 cars produced still exist, is anybodies guess. I haven’t come across any of the others in my six years of researching it, and Mr. Kasarjian doesn’t seem to know of the whereabouts of any others either. Mr. Kasarjian confirmed that this car sold new for an additional $20,000 above the price of a standard new Jaguar XJS(which was over $44,000), so this car sold new for over $64,000. So, in 1987, this car was beyond the reach of all but the wealthy and powerful people, but then that has always been the case with new red 12 cylinder convertible hot rods. This car spent its first ten years in Los Angeles county, and judging by how people like to show off their new Ferraris, Bentleys, etc. at Laguna Beach nowadays, I have to believe that this car spent a lot of time cruising the beaches in Los Angeles county when it was new.
   This car has European headlights, XJR wheels, XJRS grill, and XJRS wing.
   Jaguar’s XJS won the Trans Am championship(Category 1) in 1977 and 1978, and came in second in the championship in 1981 with Bob Tullius driving.  Jaguar’s XJS came in third in the European Touring Cars Championship in 1982, came in second in 1983 in the championship, and won the championship in 1984 with Tom Walkinshaw driving.
   In 1987, when European auto manufacturers were emphasizing safety and gas mileage of their cars, they were not importing cars with cutting edge performance. And their concerns that the U.S.A. would enact strict roll over standards, kept them from developing new models into convertibles. This caused small companies like Eurowest, AMG, Alpina, Ruf, Kremer, etc. to produce cars such as the Eurowest Jaguar XJS, AMG Mercedes 560SL, Alpina BMW 635csi, Ruf Porsche Turbo, Kremer Porsche Turbo, etc. Again these were cars that only wealthy powerful people and drug kingpins could afford. So, in this price range, the Eurowest Jaguar XJS was competing with cars like the AMG Mercedes 560SL, Alpina BMW 635csi, Ruf Porsche Turbo, and Kremer Porsche Turbo in the automotive marketplace.
   The factory original drivetrain on the Jaguar XJS is excessive. The engine is an aluminum overhead cam fuel injected 12 cylinder. This engine is a huge chunk of aluminum that weighs(680 lbs.) more than a cast iron big block Chevy, and this engine takes twice the amount of oil(11.5 quarts) of a regular car engine(approx. 5.5 quarts), and twice the amount of radiator coolant(21 quarts)  of a regular car engine(approx. 12 quarts). The transmission on a Jaguar XJS is the same as used on the Rolls Royce Silver Shadow, Corniche, and Camargue and on the Ferrari 400i and 412i, and also on the 500 cubic inch V8 engine Cadillacs of the 1970's. The rear end suspension and braking system is the same used on the Jaguar XKE which is so highly prized by hot rod builders. This is a fully independent rear end suspension with two coil over shocks per side, with inboard disk brakes(like on a Formula 1 Grand Prix race car) and a posi-traction type differential. The differential itself is a Dana 44 unit on these Jaguars which is also the original equipment unit on Vipers, C4 Corvette  ZR-1, and 427 Cobras.
About the Eurowest Jaguar designer.
Progress, technical advances, and change are inevitable in any   civilization. So it was probably inevitable that baseball bats would evolve from being made of wood to being made of metal. But a man with a passion for the sport he loves, believed that tradition is also important and should be allowed to survive. A man who wanted to enjoy the sport the way he learned the game in his youth. So, Jack Kasarjian decided to start a company(X-bats) to manufacture premium quality wood baseball bats in this day and age of metal bats. It is nice to see people like this, whose passion for the sport led to their involvement in the sport. For as we all know, in todays world, that is all too rare. And now, of course, baseball statistics record the top notch performance of the X-bats.

When someone sets out to create an artistic masterpiece, sometimes other concerns regarding your artistic medium must take a back seat. 
When you are going to build only 50 copies of an expensive boutique car, it has to be a stylistic masterpiece. However, when you plan on building only 50 copies, you would not place a heavy emphasis on attracting repeat customers as a company such as Toyota or Honda must do. Of course for a company like Toyota, their whole business revolves around attracting repeat customers. Because of this, if you plan to build only 50 boutique cars, you would not spend several years researching and working all the little bugs out of the car. Therefore the car could not be expected to have the long term longevity of some Toyota that lasts for nearly a million miles. And, of course, Jaguars built in the 1980's had a lot of problems to begin with.

That explains why only one 1987 Eurowest-Jaguar XJS Convertible has survived.
Most people felt that Jaguars built in the 1980's were not worth the effort to save, given reliability and cost of maintenance and repair issues.