2007 Alfa Romeo 156 vs. 2007 Cadillac STS
To start off, both 2007 Alfa Romeo 156 and 2007 Cadillac STS were released in the same year (2007). Therefore the support and the availability on parts for both vehicles should be relatively similar. At 3,556 cc (6 cylinders), 2007 Cadillac STS is equipped with a bigger engine. In terms of performance, 2007 Cadillac STS (254 HP @ 6500 RPM) has 64 more horse power than 2007 Alfa Romeo 156. (190 HP @ 6300 RPM) In normal driving conditions, 2007 Cadillac STS should accelerate faster than 2007 Alfa Romeo 156. With that said, vehicle weight also plays an important factor in acceleration. 2007 Cadillac STS weights approximately 377 kg more than 2007 Alfa Romeo 156. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2007 Cadillac STS is four wheel drive (4WD), it will have significant more traction and grip than 2007 Alfa Romeo 156. In wet, icy, snow, or gravel driving conditions, 2007 Cadillac STS 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 Cadillac STS (342 Nm @ 3200 RPM) has 124 more torque (in Nm) than 2007 Alfa Romeo 156. (218 Nm @ 5000 RPM). This means 2007 Cadillac STS will have an easier job in driving up hills or pulling heavy equipment than 2007 Alfa Romeo 156. 2007 Cadillac STS has automatic transmission and 2007 Alfa Romeo 156 has manual transmission. 2007 Alfa Romeo 156 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2007 Cadillac STS will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2007 Alfa Romeo 156 | 2007 Cadillac STS | |
| Make | Alfa Romeo | Cadillac |
| Model | 156 | STS |
| Year Released | 2007 | 2007 |
| Body Type | Station Wagon | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2492 cc | 3556 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 190 HP | 254 HP |
| Engine RPM | 6300 RPM | 6500 RPM |
| Torque | 218 Nm | 342 Nm |
| Torque RPM | 5000 RPM | 3200 RPM |
| Engine Bore Size | 88 mm | 94 mm |
| Engine Stroke Size | 68.3 mm | 85.6 mm |
| Engine Compression Ratio | 10.3:1 | 10.5:1 |
| Fuel Type | Gasoline | Gasoline |
| Top Speed | 230 km/hour | 229 km/hour |
| Drive Type | Front | 4WD |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1405 kg | 1782 kg |
| Vehicle Length | 4450 mm | 4990 mm |
| Vehicle Width | 1750 mm | 1850 mm |
| Vehicle Height | 1440 mm | 1470 mm |
| Wheelbase Size | 2600 mm | 2960 mm |
| Fuel Consumption Overall | 11.8 L/100km | 12.4 L/100km |
| Fuel Tank Capacity | 63 L | 66 L |
