- Combustion principle: four-stroke petrol (with manifold injection; emission control system with closed-loop 3-way catalyst as an option, from 09.1986 as standard)
- Configuration: front, longitudinal; vertical
- Engine type: M 117 E 50 / 117.965
- Number of cylinders / arrangement: 8 / 90° V; light-alloy block
- Bore x Stroke: 96.5 x 85.0 mm
- Total displacement: 4973 cc (tax classification: 4939 cc)
- Compression ratio: 9.0; from 09.1987: 10.0
- Rated output: 245 hp / 180 kW at 4750 rpm (with catalyst 223 hp / 164 kW at 4700 rpm); from 09.1987: 265 hp / 195 kW (with catalyst 252 hp / 185 kW) at 5200 rpm
- Rated torque: 400 Nm at 3750 rpm (with catalyst 365 Nm at 2500 rpm); from~09.1987: 405 Nm at 4000 rpm (with catalyst 390 Nm at 3750 rpm)
- Number of valves / arrangement: 1 intake, 1 exhaust / overhead
- Valve operation: 1 overhead camshaft per cylinder bank
- Camshaft drive: double roller chain
- Fuel system: manifold injection, mechanically-electronically controlled~(Bosch KE-Jetronic)
- Fuel tank: position / capacity: above the rear axle / 90 l
- Frame design: steel unit body
- Front-wheel suspension: double wishbone
- Rear-wheel suspension: semi-trailing arm axle (hydropneumatic level control optional)
- Front springs: coil springs, supplementary rubber suspension, torsion bar stabiliser
- Rear springs: coil springs, hydropneumatic spring struts, torsion bar stabiliser
- Shock absorber front/rear: gas-pressure shock absorbers
- Steering: recirculating-ball power steering
- Brake system (foot brake): hydraulic dual-circuit brake system with vacuum booster and antilock system;~disc brakes front (internally ventilated) and rear
- Parking brake (hand brake): mechanical (foot-operated), acting on rear wheels
- Wheels: light-alloy wheels
- Wheel rims: 7 J x 15 H 2
- Tires: 215/65 R 15 102 H
- Driven wheels: rear wheels
- Drivetrain: divided cardan shaft
- Gearing: 4-speed automatic transmission
- Availibility: as standard (until 09.1988)
- Shifting: central floor gear shift lever
- Clutch: hydraulic torque converter in automatic transmission
- Transmission type: planetary gear system
- Gear ratios: I. 3.68; II. 2.41; III. 1.44; IV. 1.0; R. 5.14
- Final drive ratio: 2.24
- Gearing: 4-speed automatic transmission
- Availibility: as standard (from 09.1988)
- Shifting: central floor gear shift lever
- Clutch: hydraulic torque converter in automatic transmission
- Transmission type: planetary gear system
- Gear ratios: I. 3.87; II. 2.25; III. 1.44; IV. 1.0; R. 5.59
- Final drive ratio: 2.24
- Wheelbase: 2930 mm
- Front / rear track: 1555 / 1527 mm
- Length: 5020 mm
- Width: 1820 mm
- Height: 1437 mm
- Kerb weight: depending on the extent of the special protection equipment
- Gross weight: depending on the extent of the special protection equipment
- Units produced: 7
- Prices: no list price