2007 Fiat Siena vs. 1999 Opel Omega
To start off, 2007 Fiat Siena 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 2,198 cc (4 cylinders), 1999 Opel Omega is equipped with a bigger engine. In terms of performance, 1999 Opel Omega (142 HP @ 5400 RPM) has 42 more horse power than 2007 Fiat Siena. (100 HP @ 5500 RPM) In normal driving conditions, 1999 Opel Omega should accelerate faster than 2007 Fiat Siena. With that said, vehicle weight also plays an important factor in acceleration. 1999 Opel Omega weights approximately 595 kg more than 2007 Fiat Siena. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 1999 Opel Omega is rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 1999 Opel Omega. However, in wet, icy, snow, or gravel driving conditions, 2007 Fiat Siena, being front wheel drive (FWD), will offer much better control with better grip. 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, 1999 Opel Omega (210 Nm @ 4000 RPM) has 135 more torque (in Nm) than 2007 Fiat Siena. (75 Nm @ 5500 RPM). This means 1999 Opel Omega will have an easier job in driving up hills or pulling heavy equipment than 2007 Fiat Siena.
Compare all specifications:
| 2007 Fiat Siena | 1999 Opel Omega | |
| Make | Fiat | Opel |
| Model | Siena | Omega |
| Year Released | 2007 | 1999 |
| Engine Position | Front | Middle |
| Engine Size | 1581 cc | 2198 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 100 HP | 142 HP |
| Engine RPM | 5500 RPM | 5400 RPM |
| Torque | 75 Nm | 210 Nm |
| Torque RPM | 5500 RPM | 4000 RPM |
| Engine Bore Size | 86.4 mm | 86 mm |
| Engine Stroke Size | 67.4 mm | 94.6 mm |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Front | Rear |
| Transmission Type | Manual | Manual |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1070 kg | 1665 kg |
| Vehicle Width | 1640 mm | 1790 mm |
| Vehicle Height | 1440 mm | 1510 mm |
| Wheelbase Size | 2380 mm | 2740 mm |
| Fuel Tank Capacity | 54 L | 75 L |
