2003 Alfa Romeo 156 vs. 2004 Cadillac DeVille
To start off, 2004 Cadillac DeVille is newer by 1 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 4,600 cc (8 cylinders), 2004 Cadillac DeVille is equipped with a bigger engine. In terms of performance, 2004 Cadillac DeVille (275 HP @ 6000 RPM) has 137 more horse power than 2003 Alfa Romeo 156. (138 HP @ 6200 RPM) In normal driving conditions, 2004 Cadillac DeVille should accelerate faster than 2003 Alfa Romeo 156. With that said, vehicle weight also plays an important factor in acceleration. 2004 Cadillac DeVille weights approximately 448 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.
Both vehicles are front wheel drive (FWD). Which offers better traction when its slippery than rear wheel drive vehicles. 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, 2004 Cadillac DeVille (420 Nm) has 256 more torque (in Nm) than 2003 Alfa Romeo 156. (164 Nm). This means 2004 Cadillac DeVille 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 | 2004 Cadillac DeVille | |
| Make | Alfa Romeo | Cadillac |
| Model | 156 | DeVille |
| Year Released | 2003 | 2004 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 1774 cc | 4600 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 138 HP | 275 HP |
| Engine RPM | 6200 RPM | 6000 RPM |
| Torque | 164 Nm | 420 Nm |
| Engine Bore Size | 82 mm | 93 mm |
| Engine Stroke Size | 82.7 mm | 84 mm |
| Drive Type | Front | Front |
| Number of Seats | 5 seats | 6 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1340 kg | 1788 kg |
| Vehicle Length | 4440 mm | 5270 mm |
| Vehicle Width | 1750 mm | 1900 mm |
| Vehicle Height | 1400 mm | 1450 mm |
| Wheelbase Size | 2600 mm | 2890 mm |
| Fuel Consumption Overall | 8.5 L/100km | 11.2 L/100km |
| Fuel Tank Capacity | 63 L | 70 L |
