2007 BMW Z4 vs. 1999 Opel Omega
To start off, 2007 BMW Z4 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 5,663 cc (8 cylinders), 1999 Opel Omega is equipped with a bigger engine. In terms of performance, 2007 BMW Z4 (338 HP @ 7900 RPM) has 27 more horse power than 1999 Opel Omega. (311 HP @ 5600 RPM). In normal driving conditions, 2007 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 165 kg more than 2007 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, 1999 Opel Omega (459 Nm @ 4400 RPM) has 94 more torque (in Nm) than 2007 BMW Z4. (365 Nm @ 4900 RPM). This means 1999 Opel Omega will have an easier job in driving up hills or pulling heavy equipment than 2007 BMW Z4. 1999 Opel Omega has automatic transmission and 2007 BMW Z4 has manual transmission. 2007 BMW Z4 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 1999 Opel Omega will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2007 BMW Z4 | 1999 Opel Omega | |
| Make | BMW | Opel |
| Model | Z4 | Omega |
| Year Released | 2007 | 1999 |
| Engine Position | Front | Front |
| Engine Size | 3246 cc | 5663 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 338 HP | 311 HP |
| Engine RPM | 7900 RPM | 5600 RPM |
| Torque | 365 Nm | 459 Nm |
| Torque RPM | 4900 RPM | 4400 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Automatic |
| Vehicle Weight | 1485 kg | 1650 kg |
| Vehicle Length | 4120 mm | 4900 mm |
| Vehicle Width | 1310 mm | 1790 mm |
| Vehicle Height | 1790 mm | 1460 mm |
| Wheelbase Size | 2500 mm | 2740 mm |
