- Combustion principle: four-stroke petrol (with manifold injection and emission control system with closed-loop 3-way catalyst)
- Configuration: front, longitudinal; vertical
- Engine type: M 104 E 30/2 / 104.981
- Number of cylinders / arrangement: 6 / in-line; 15° inclination to the right
- Bore x Stroke: 88.5 x 80.2 mm
- Total displacement: 2960 cc
- Compression ratio: 10.0
- Rated output: 170 kW / 231 hp at 6300 rpm
- Rated torque: 272 Nm at 4600 rpm
- Number of valves / arrangement: 2 intake, 2 exhaust / V-shaped overhead
- Valve operation: 2 overhead camshafts (intake camshaft adjustable)
- Camshaft drive: double roller chain
- Fuel system: manifold injection, mechanically-electronically controlled (Bosch KE-Jetronic)
- Fuel tank: position / capacity: above the rear axle / 80 l
- Frame design: steel unit body
- Front-wheel suspension: A-arm / shock-absorber strut (level control optional)
- Rear-wheel suspension: multilink suspension (hydropneumatic level control optional)
- Front springs: coil springs, torsion bar stabiliser
- Rear springs: coil springs, torsion bar stabiliser
- Shock absorber front/rear: gas-pressure shock absorber struts / 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: 8 J x 16 H 2
- Tires: 225/55 ZR 16
- Driven wheels: rear wheels
- Drivetrain: divided cardan shaft
- Gearing: 5-speed manual transmission
- Availibility: as standard
- Shifting: central floor gear shift lever
- Clutch: dry single-disc clutch
- Transmission type: change-speed gear
- Gear ratios: I. 4.15; II. 2.52; III. 1.69; IV. 1.24; V. 1.0; R. 4.15
- Final drive ratio: 3.46
- Maximum speed: 240 km/h
- Acceleration 0-100 km/h: 8.4 s
- Fuel consumption: 8.8 / 10.4 / 16.2 l
- by Guideline: 80/1268/EEC: figures apply to 90 km/h / 120 km/h / urban cycle
- Gearing: 4-speed automatic transmission
- Availibility: optional
- 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: 3.46
- Maximum speed: 235 km/h
- Acceleration 0-100 km/h: 8.4 s
- Fuel consumption: 9.4 / 10.9 / 15.0 l
- by Guideline: 80/1268/EEC: figures apply to 90 km/h / 120 km/h / urban cycle
- Gearing: 5-speed automatic transmission
- Availibility: optional (from 09.1989)
- 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; V. 0.75; R. 5.59
- Final drive ratio: 3.69
- Maximum speed: 230 km/h
- Acceleration 0-100 km/h: 8.4 s
- Fuel consumption: 8.5 / 10.0 / 15.3 l
- by Guideline: 80/1268/EEC: figures apply to 90 km/h / 120 km/h / urban cycle
- Wheelbase: 2515 mm
- Front / rear track: 1535 / 1523 mm
- Length: 4470 mm
- Width: 1812 mm
- Height: 1303 mm (with cabriolet top closed)
- Kerb weight: 1690 kg; from 09.1991: 1740 kg
- by Guideline: DIN 70020 (ready to drive, including fuel, spare wheel and tool kit)
- Gross weight: 2080 kg; from 09.1991: 2130 kg
- Units produced: 26,984
- Prices: 03.1989: DM 99,180.00
01.1990: DM 103,854.00
10.1990: DM 108,927.00
06.1991: DM 112,917.00
09.1991: DM 114,627.00
02.1992: DM 115,824.00
10.1992: DM 116,622.00
01.1993: DM 120,922.50