2003 Alfa Romeo 156 vs. 2006 Aston Martin DB9
To start off, 2006 Aston Martin DB9 is newer by 3 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 5,932 cc (12 cylinders), 2006 Aston Martin DB9 is equipped with a bigger engine. In terms of performance, 2006 Aston Martin DB9 (450 HP @ 6000 RPM) has 312 more horse power than 2003 Alfa Romeo 156. (138 HP @ 6200 RPM) In normal driving conditions, 2006 Aston Martin DB9 should accelerate faster than 2003 Alfa Romeo 156. With that said, vehicle weight also plays an important factor in acceleration. 2006 Aston Martin DB9 weights approximately 370 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 2006 Aston Martin DB9 is rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 2006 Aston Martin DB9. However, in wet, icy, snow, or gravel driving conditions, 2003 Alfa Romeo 156, being front wheel drive (FWD), will offer much better control with better grip. 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, 2006 Aston Martin DB9 (570 Nm @ 5000 RPM) has 406 more torque (in Nm) than 2003 Alfa Romeo 156. (164 Nm @ 3900 RPM). This means 2006 Aston Martin DB9 will have an easier job in driving up hills or pulling heavy equipment than 2003 Alfa Romeo 156.
Compare all specifications:
| 2003 Alfa Romeo 156 | 2006 Aston Martin DB9 | |
| Make | Alfa Romeo | Aston Martin |
| Model | 156 | DB9 |
| Year Released | 2003 | 2006 |
| Body Type | Sedan | Convertible |
| Engine Position | Front | Front |
| Engine Size | 1774 cc | 5932 cc |
| Engine Cylinders | 4 cylinders | 12 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 138 HP | 450 HP |
| Engine RPM | 6200 RPM | 6000 RPM |
| Torque | 164 Nm | 570 Nm |
| Torque RPM | 3900 RPM | 5000 RPM |
| Engine Bore Size | 82 mm | 89.1 mm |
| Engine Stroke Size | 82.7 mm | 79.5 mm |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Drive Type | Front | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1340 kg | 1710 kg |
| Vehicle Length | 4440 mm | 4720 mm |
| Vehicle Width | 1750 mm | 1880 mm |
| Vehicle Height | 1400 mm | 1320 mm |
| Wheelbase Size | 2600 mm | 2750 mm |
| Fuel Consumption Overall | 8.5 L/100km | 15.7 L/100km |
| Fuel Tank Capacity | 63 L | 83 L |
