Comparison Mercedes-Benz R-class (W251) R 300 CDI BlueEFFICIENCY (190 Hp) & Opel Vectra C (facelift 2005) 3.0 CDTI (184 Hp)
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| Brand: | Mercedes-Benz | Opel |
| Model: | R-class | Vectra |
| Generation: | R-class (W251) | Vectra C (facelift 2005) |
| Engine / modification: | R 300 CDI BlueEFFICIENCY (190 Hp) | 3.0 CDTI (184 Hp) |
| Production start: | 2009 year | 2006 year |
| Production end: | 2012 year | 2008 year |
| Coupe type: | Combi | Sedan |
| Num. of Doors: | 5 | 4 |
| Num. of seats: | 5 | 5 |
| Fuel consumption / economy - urban: | 9.6-9.9 l/100 km | 9.8 l/100 km |
| Fuel consumption / economy - extra urban: | 6.4-6.7 l/100 km | 5.2 l/100 km |
| Fuel consumption / economy - combined: | 7.6-7.8 l/100 km | 6.9 l/100 km |
| Fuel Type: | Diesel | Diesel |
| Fuel tank volume: | 80 l | 61 l |
| Emission standard: | EURO V | |
| Power: | 190 hp | 184 hp |
| Max power in: | 3800 rpm. | 4000 rpm. |
| Maximum speed: | 215 km/h | 230 km/h |
| Acceleration from 0 to 100 km/h: | 9.5 sec | 8.9 sec |
| Torque: | 440 Nm/1400-2800 rpm. | 400 Nm |
| Model Engine: | Z30DT | |
| Engine position: | Front, longitudinal | Front, transverse |
| Engine displacement: | 2987 cm3 | 2958 cm3 |
| Engine oil capacity: | 7.5 l | |
| Fuel System: | Diesel Commonrail | Direct injection |
| Aspiration / Turbine: | Turbo / Intercooler (Turbocharging / Intercooler) | Turbocharging |
| Position of cylinders: | V engine | V engine |
| Number of cylinders: | 6 | 6 |
| Number of valves per cylinder: | 4 | |
| Compression ratio: | 15.5 | 18.5 |
| Piston Stroke: | 82 mm | |
| Cylinder Bore: | 87.5 mm | |
| Wheel Drive: | Rear wheel drive | Front wheel drive |
| Number of Gears (automatic transmission): | 7 | 6 |
| Number of Gears (manual transmission): | 6 | |
| Length: | 4922 mm | 4611 mm |
| Width: | 1922 mm | 1798 mm |
| Height: | 1674 mm | 1460 mm |
| Wheelbase: | 2980 mm | 2700 mm |
| Front track: | 1661 mm | 1536 mm |
| Rear (Back) track: | 1651 mm | 1525 mm |
| Minimum volume of Luggage (trunk): | 550 l | |
| Maximum amount of Luggage (trunk): | 1950 l | 500 l |
| Front suspension: | Helical spring | Independent, spring |
| Rear suspension: | Helical spring | Independent, spring |
| Max weight: | 2840 kg | 2110 kg |
| Front brakes: | Ventilated discs | Disc |
| Rear brakes: | Disc | Disc |
| Kerb Weight: | 2185 kg | 1565 kg |
| ABS: | yes | yes |
| Steering type: | Steering rack and pinion | |
| Power steering: | Hydraulic Steering | |
| Minimum turning circle (turning diameter): | 11.8 m | |
| Tire size: | 235/65 R 17 | 215/55 R16 |
| Wheel rims size: | R17 | R16 |