1997 Alfa Romeo 155 vs. 2011 Cadillac STS
To start off, 2011 Cadillac STS is newer by 14 year(s). Which means there will be less support and parts availability for 1997 Alfa Romeo 155. In addition, the cost of maintenance, including insurance, on 1997 Alfa Romeo 155 would be higher. At 3,600 cc (6 cylinders), 2011 Cadillac STS is equipped with a bigger engine. In terms of performance, 1997 Alfa Romeo 155 (493 HP @ 11700 RPM) has 191 more horse power than 2011 Cadillac STS. (302 HP @ 6300 RPM). In normal driving conditions, 1997 Alfa Romeo 155 should accelerate faster than 2011 Cadillac STS. With that said, vehicle weight also plays an important factor in acceleration. 2011 Cadillac STS weights approximately 762 kg more than 1997 Alfa Romeo 155.
Let's talk about torque, 2011 Cadillac STS (368 Nm @ 5200 RPM) has 68 more torque (in Nm) than 1997 Alfa Romeo 155. (300 Nm @ 9500 RPM). This means 2011 Cadillac STS will have an easier job in driving up hills or pulling heavy equipment than 1997 Alfa Romeo 155.
Compare all specifications:
| 1997 Alfa Romeo 155 | 2011 Cadillac STS | |
| Make | Alfa Romeo | Cadillac |
| Model | 155 | STS |
| Year Released | 1997 | 2011 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2499 cc | 3600 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Horse Power | 493 HP | 302 HP |
| Engine RPM | 11700 RPM | 6300 RPM |
| Torque | 300 Nm | 368 Nm |
| Torque RPM | 9500 RPM | 5200 RPM |
| Fuel Type | Gasoline | Gasoline |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1040 kg | 1802 kg |
| Vehicle Width | 1750 mm | 1844 mm |
