With a fuel consumption of 15 litres/100km - 19 mpg UK - 16 mpg US (Average), 0 to 100 km/h (62mph) in 8.1 seconds, a maximum top speed of 148 mph (238 km/h), a curb weight of 3869 lbs (1755 kgs), the XJS Convertible V12 has a naturally-aspirated V 12 cylinder engine, Petrol motor, with the engine code V12.
This engine produces a maximum power of 277 PS (273 bhp - 204 kW) at 5250 rpm and a maximum torque of 404 Nm (297 lb.ft) at 2800 rpm. The power is transmitted to the road by the rear wheel drive (RWD) with a 3 speed Automatic gearbox.
About chassis details responsible for road holding, handling behaviour and ride confort, the XJS Convertible has Independent. Double Wishbones. coil springs. anti-roll bar front suspension and Coil springs. anti-roll bar rear suspension. Stock tire sizes are 235 / 60 on 15 inch rims at the front, and 235 / 60 on 15 inch rims at the rear. For stopping power, the XJS Convertible V12 braking system includes Vented Discs at the front and Discs at the rear.
The XJS Convertible model is a car manufactured by Jaguar, sold new from year 1988 to 1991, and available after that as a used car.
Jaguar XJS Convertible V12 Engine Technical Data
Engine type - Number of cylinders : V 12
Engine Code : V12
Fuel type : Petrol
Fuel System : MPI - Lucas 26CU
Engine Alignment : Longitudinal
Engine size - Displacement - Engine capacity : 5343 cm3 or 326 cu-in
Bore x Stroke : 90.0 x 70.0 mm
3.54 x 2.76 inches
Number of valves : 2 Valves
Aspiration : N/A
Compression Ratio : 11.5
Maximum power - Output - Horsepower : 277 PS or 273 bhp or 204 kW @ 5250 rpm
Maximum torque : 404 Nm or 297 lb.ft @ 2800 rpm
Drive wheels - Traction - Drivetrain : RWD
Transmission Gearbox - Number of speeds : 3 speed Automatic 
Jaguar XJS Convertible V12 Fuel Consumption (Economy), Emissions and Range
Fuel Consumption - Economy - Combined: 15 L/100km
19 mpg UK / 16 mpg US
Range : 606 Km or 377 miles
Fuel Tank Capacity : 91 L
20 UK gallons
24 US gallons
CO2 emissions : 349 g/Km (estimate)
Jaguar XJS Convertible V12 Performance
Top Speed : 238 km/h or 148 Mph
Acceleration 0 to 100 km/h (0 to 62 mph) : 8.1 s
Jaguar XJS Convertible V12 Size, Dimensions, Aerodynamics and Weight
Num. of Doors : 2
Wheelbase : 259 cm or 101.97 inches
Length : 476 cm or 187.4 inches
Width : 179 cm or 70.47 inches
Height : 126 cm or 49.61 inches
Max. Towing Capacity Weight : 0 Kg or 0 lbs
Aerodynamic drag coefficient - Cx : -
Front Brakes - Disc dimensions : Vented Discs (- mm)
Rear Brakes - Dics dimensions : Discs (- mm)
Front Tyres - Rims dimensions : 235/60 R15
Rear Tyres - Rims dimensions : 235/60 R15
Curb Weight : 1755 kg OR 3869 lbs
Weight-Power Output Ratio : 6.3 kg/hp
Trunk / Boot capacity : 480 L
Front Suspension : Independent. Double Wishbones. coil springs. anti-roll bar