Comparison Mercedes-Benz R-class (W251) Long R 300 V6 (231 Hp) G-TRONIC & Mazda 3 IV Hatchback 2.0 e-SkyActiv-G (122 Hp)
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| Brand: | Mercedes-Benz | Mazda |
| Model: | R-class | 3 |
| Generation: | R-class (W251) Long | 3 IV Hatchback |
| Engine / modification: | R 300 V6 (231 Hp) G-TRONIC | 2.0 e-SkyActiv-G (122 Hp) |
| Production start: | 2009 year | 2021 year |
| Production end: | 2010 year | |
| Coupe type: | Combi | Hatchback |
| Powertrain Architecture: | MHEV (Mild Hybrid Electric Vehicle, power-assist hybrid, battery-assisted hybrid vehicles, BAHV) | |
| Num. of Doors: | 5 | 5 |
| Num. of seats: | 5 | 5 |
| Fuel consumption / economy - urban: | 15.2-15.4 l/100 km | 6.1-6.2 l/100 km |
| Fuel consumption / economy - extra urban: | 8.8-9.0 l/100 km | 4.3-4.5 l/100 km |
| Fuel consumption / economy - combined: | 11.1-11.3 l/100 km | 5-5.1 l/100 km |
| Fuel consumption at Low speed (WLTP): | 7.2-7.3 l/100 km | |
| Fuel Type: | Petrol (Gasoline) | Petrol (Gasoline) |
| Fuel consumption at Medium speed (WLTP): | 5.4-5.5 l/100 km | |
| Fuel consumption at high speed (WLTP): | 4.7-4.8 l/100 km | |
| Fuel tank volume: | 80 l | 51 l |
| Fuel consumption at very high speed (WLTP): | 5.6-5.8 l/100 km | |
| Combined fuel consumption (WLTP): | 5.5-5.6 l/100 km | |
| Emission standard: | EURO V | Euro 6d-ISC-FCM |
| CO2 emissions: | 260 g/km | 111-115 g/km |
| Power: | 231 hp | 122 hp |
| Max power in: | 6000 rpm. | 6000 rpm. |
| Maximum speed: | 222 km/h | 197 km/h |
| Acceleration from 0 to 100 km/h: | 9.7 sec | 10.4 sec |
| CO2 emissions (WLTP): | 124-127 g/km | |
| Torque: | 300 Nm @ 2500-5000 rpm. | 213 Nm @ 4000 rpm. |
| Engine position: | Front, longitudinal | |
| Engine displacement: | 2996 cm3 | 1998 cm3 |
| Fuel System: | Multi-point injection | |
| Aspiration / Turbine: | Naturally aspirated engine | |
| Position of cylinders: | V engine | |
| Number of cylinders: | 6 | 4 |
| Number of valves per cylinder: | 4 | |
| Compression ratio: | 11.3 | 13 |
| Piston Stroke: | 91.2 mm | |
| Cylinder Bore: | 83.5 mm | |
| Wheel Drive: | Rear wheel drive | Front wheel drive |
| Number of Gears (automatic transmission): | 7G-TRONIC | |
| Length: | 5157 mm | 4460 mm |
| Width: | 1922 mm | 1795 mm |
| Width including mirrors: | 2028 mm | |
| Height: | 1674 mm | 1435 mm |
| Wheelbase: | 3215 mm | 2725 mm |
| Front track: | 1661 mm | |
| Rear (Back) track: | 1651 mm | |
| Ride height(clearance): | 135 mm | |
| Minimum volume of Luggage (trunk): | 351 l | |
| Maximum amount of Luggage (trunk): | 2385 l | 1026 l |
| Front suspension: | Double wishbone | Independent type McPherson |
| Rear suspension: | Independent, spring multi-link with stabilizer | Torsion |
| Max weight: | 2840 kg | 1875 kg |
| Front brakes: | Ventilated discs | Disc |
| Rear brakes: | Disc | Disc |
| Kerb Weight: | 2175 kg | 1274-1364 kg |
| ABS: | yes | |
| Steering type: | Steering rack and pinion | Steering rack and pinion |
| Power steering: | Hydraulic Steering | Electric Steering |
| Max. roof load: | 75 kg | |
| Permitted trailer load with brakes (8%): | 1300 kg | |
| Minimum turning circle (turning diameter): | 12.4 m | 10.6 m |
| Permitted trailer load with brakes (12%): | 2100 kg | 1300 kg |
| Permitted trailer load without brakes: | 750 kg | 600 kg |
| Permitted towbar download: | 75 kg | |
| Tire size: | 255/55 R18 | 205/60 R16; 215/45 R18 |
| Wheel rims size: | R18 | 16; 18 |