2003 Alfa Romeo 156 vs. 2013 Cadillac XTS
To start off, 2013 Cadillac XTS is newer by 10 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 3,564 cc (6 cylinders), 2013 Cadillac XTS is equipped with a bigger engine. In terms of performance, 2013 Cadillac XTS (314 HP @ 6800 RPM) has 125 more horse power than 2003 Alfa Romeo 156. (189 HP @ 6300 RPM) In normal driving conditions, 2013 Cadillac XTS should accelerate faster than 2003 Alfa Romeo 156. With that said, vehicle weight also plays an important factor in acceleration. 2013 Cadillac XTS weights approximately 477 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 2013 Cadillac XTS is all wheel drive (AWD), it will have significant more traction and grip than 2003 Alfa Romeo 156. In wet, icy, snow, or gravel driving conditions, 2013 Cadillac XTS 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, 2013 Cadillac XTS (358 Nm @ 5200 RPM) has 140 more torque (in Nm) than 2003 Alfa Romeo 156. (218 Nm @ 5000 RPM). This means 2013 Cadillac XTS 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 | 2013 Cadillac XTS | |
| Make | Alfa Romeo | Cadillac |
| Model | 156 | XTS |
| Year Released | 2003 | 2013 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2387 cc | 3564 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 189 HP | 314 HP |
| Engine RPM | 6300 RPM | 6800 RPM |
| Torque | 218 Nm | 358 Nm |
| Torque RPM | 5000 RPM | 5200 RPM |
| Engine Compression Ratio | 10.3:1 | 11.5 |
| Drive Type | Front | AWD |
| Transmission Type | Automatic | 6-speed automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1435 kg | 1912 kg |
| Vehicle Length | 4440 mm | 5131 mm |
| Vehicle Width | 1750 mm | 1852 mm |
| Vehicle Height | 1440 mm | 1510 mm |
| Wheelbase Size | 2710 mm | 2837 mm |
| Fuel Consumption | 8.6 L/100km | 9 L/100km |
| Fuel Consumption City | 17.5 L/100km | 13.8 L/100km |
| Fuel Consumption Overall | 11.9 L/100km | 11.8 L/100km |
| Fuel Tank Capacity | 63 L | 76 L |
