Let’s not get things confused: Blackjack is a popular card game, played in casinos around the world, and it’s all about the number 21. This here is a Black Jag, and it’s all about the 12: The mighty 5.3 litre 12-cylinder engine is what sets it apart, being de facto a unique selling point when the car was new. Built in 1978, the Series II XJ started life as a right-hand drive car. At some point in time, the Jaguar has been partly restored, repainted – not a bad idea, seeing that the original colour appears to have been baby blue – and converted to left-hand drive. The overall impression of this very elegant coupé is highly convincing: The black leather interior – believed to be original – is in good shape with an acceptable degree of patina. The burlwood dashboard, an absolute must-have for a British luxury car, is almost devoid of cracks, and the black headliner unstained. Engine compartment and boot both look clean and dry. The paint from 2013 and the chrome parts shine as befits a noble Jaguar. The XJ features power windows and centre armrests, both front and rear. Of course it also has the Borg Warner BW 12 automatic gearbox installed. The odometer reads a low mileage of not yet 67,000 km, which can however not be vouched for. The Black Jag has only last year received a new windscreen and new fuel tanks, and the front axle as well as the driveshaft have been overhauled. It comes with technical approval valid until 08/2016, German registration documents and historic plates.