2003 Alfa Romeo 156 vs. 2007 Mercedes-Benz R
To start off, 2007 Mercedes-Benz R is newer by 4 year(s). Which means there will be less support and parts availability for 2003 Alfa Romeo 156. In addition, the cost of maintenance, including insurance, on 2003 Alfa Romeo 156 would be higher. At 6,208 cc (8 cylinders), 2007 Mercedes-Benz R is equipped with a bigger engine. In terms of performance, 2007 Mercedes-Benz R (503 HP @ 6800 RPM) has 365 more horse power than 2003 Alfa Romeo 156. (138 HP @ 6500 RPM) In normal driving conditions, 2007 Mercedes-Benz R should accelerate faster than 2003 Alfa Romeo 156. With that said, vehicle weight also plays an important factor in acceleration. 2007 Mercedes-Benz R weights approximately 986 kg more than 2003 Alfa Romeo 156. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2007 Mercedes-Benz R is four wheel drive (4WD), it will have significant more traction and grip than 2003 Alfa Romeo 156. In wet, icy, snow, or gravel driving conditions, 2007 Mercedes-Benz R will offer significantly more control. With that said, do keep in mind that many other factors such as speed and the wear on your tires can also have significant impact on traction and control. Let's talk about torque, 2007 Mercedes-Benz R (630 Nm @ 5200 RPM) has 467 more torque (in Nm) than 2003 Alfa Romeo 156. (163 Nm @ 3900 RPM). This means 2007 Mercedes-Benz R will have an easier job in driving up hills or pulling heavy equipment than 2003 Alfa Romeo 156. 2007 Mercedes-Benz R has automatic transmission and 2003 Alfa Romeo 156 has manual transmission. 2003 Alfa Romeo 156 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2007 Mercedes-Benz R will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2003 Alfa Romeo 156 | 2007 Mercedes-Benz R | |
| Make | Alfa Romeo | Mercedes-Benz |
| Model | 156 | R |
| Year Released | 2003 | 2007 |
| Body Type | Station Wagon | Minivan |
| Engine Position | Front | Front |
| Engine Size | 1747 cc | 6208 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 138 HP | 503 HP |
| Engine RPM | 6500 RPM | 6800 RPM |
| Torque | 163 Nm | 630 Nm |
| Torque RPM | 3900 RPM | 5200 RPM |
| Engine Bore Size | 82 mm | 102.2 mm |
| Engine Stroke Size | 82.7 mm | 94.6 mm |
| Engine Compression Ratio | 10.3:1 | 11.3:1 |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Top Speed | 208 km/hour | 250 km/hour |
| Acceleration 0-100mph | 10 seconds | 5.1 seconds |
| Drive Type | Front | 4WD |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 6 seats |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Weight | 1390 kg | 2376 kg |
| Vehicle Length | 4450 mm | 5160 mm |
| Vehicle Width | 1750 mm | 1930 mm |
| Vehicle Height | 1400 mm | 1640 mm |
| Wheelbase Size | 2600 mm | 3220 mm |
| Fuel Tank Capacity | 63 L | 80 L |
