1999 Opel Omega vs. 2005 BMW Z4
To start off, 2005 BMW Z4 is newer by 6 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, 2005 BMW Z4 (168 HP @ 6250 RPM) has 26 more horse power than 1999 Opel Omega. (142 HP @ 5400 RPM) In normal driving conditions, 2005 BMW Z4 should accelerate faster than 1999 Opel Omega. With that said, vehicle weight also plays an important factor in acceleration. 1999 Opel Omega weights approximately 340 kg more than 2005 BMW Z4.
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, both vehicles can yield 210 Nm of torque. So under normal driving conditions, the ability to climb up hills and pull heavy equipment should be relatively similar for both vehicles. 2005 BMW Z4 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. 2005 BMW Z4 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1999 Opel Omega | 2005 BMW Z4 | |
| Make | Opel | BMW |
| Model | Omega | Z4 |
| Year Released | 1999 | 2005 |
| Engine Position | Middle | Front |
| Engine Size | 2198 cc | 2171 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 142 HP | 168 HP |
| Engine RPM | 5400 RPM | 6250 RPM |
| Torque | 210 Nm | 210 Nm |
| Torque RPM | 4000 RPM | 3500 RPM |
| Engine Bore Size | 86 mm | 80 mm |
| Engine Stroke Size | 94.6 mm | 72 mm |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Automatic |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1665 kg | 1325 kg |
| Vehicle Length | 4900 mm | 4100 mm |
| Vehicle Width | 1790 mm | 1790 mm |
| Vehicle Height | 1510 mm | 1310 mm |
| Wheelbase Size | 2740 mm | 2500 mm |
| Fuel Tank Capacity | 75 L | 55 L |
