2007 Cadillac STS vs. 1999 Opel Omega
To start off, 2007 Cadillac STS is newer by 8 year(s). Which means there will be less support and parts availability for 1999 Opel Omega. In addition, the cost of maintenance, including insurance, on 1999 Opel Omega would be higher. At 4,565 cc (8 cylinders), 2007 Cadillac STS is equipped with a bigger engine. In terms of performance, 2007 Cadillac STS (320 HP @ 6400 RPM) has 178 more horse power than 1999 Opel Omega. (142 HP @ 5400 RPM). In normal driving conditions, 2007 Cadillac STS should accelerate faster than 1999 Opel Omega. With that said, vehicle weight also plays an important factor in acceleration. 1999 Opel Omega weights approximately 167 kg more than 2007 Cadillac STS.
Both vehicles are rear wheel drive (RWD) - it offers better handling in dry conditions; in addition, if you are looking to drift, both vehicles do the job better than front 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, 2007 Cadillac STS (427 Nm @ 4400 RPM) has 218 more torque (in Nm) than 1999 Opel Omega. (209 Nm @ 4000 RPM). This means 2007 Cadillac STS will have an easier job in driving up hills or pulling heavy equipment than 1999 Opel Omega. 2007 Cadillac STS has automatic transmission and 1999 Opel Omega has manual transmission. 1999 Opel Omega 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 Cadillac STS | 1999 Opel Omega | |
| Make | Cadillac | Opel |
| Model | STS | Omega |
| Year Released | 2007 | 1999 |
| Engine Position | Front | Front |
| Engine Size | 4565 cc | 2196 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 320 HP | 142 HP |
| Engine RPM | 6400 RPM | 5400 RPM |
| Torque | 427 Nm | 209 Nm |
| Torque RPM | 4400 RPM | 4000 RPM |
| Engine Bore Size | 93 mm | 86 mm |
| Engine Stroke Size | 84 mm | 94.6 mm |
| Engine Compression Ratio | 10.5:1 | 10.5:1 |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | Manual |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1566 kg | 1733 kg |
| Vehicle Length | 4990 mm | 4900 mm |
| Vehicle Width | 1850 mm | 1780 mm |
| Vehicle Height | 1470 mm | 1460 mm |
| Wheelbase Size | 2960 mm | 2850 mm |
| Fuel Consumption Overall | 11.8 L/100km | 7.8 L/100km |
| Fuel Tank Capacity | 64 L | 75 L |
