1991 Opel Omega vs. 2011 Mercedes-Benz CLS
To start off, 2011 Mercedes-Benz CLS is newer by 20 year(s). Which means there will be less support and parts availability for 1991 Opel Omega. In addition, the cost of maintenance, including insurance, on 1991 Opel Omega would be higher. At 3,498 cc (6 cylinders), 2011 Mercedes-Benz CLS is equipped with a bigger engine. In terms of performance, 2011 Mercedes-Benz CLS (305 HP @ 3500 RPM) has 195 more horse power than 1991 Opel Omega. (110 HP @ 5200 RPM) In normal driving conditions, 2011 Mercedes-Benz CLS should accelerate faster than 1991 Opel Omega. With that said, vehicle weight also plays an important factor in acceleration. 2011 Mercedes-Benz CLS weights approximately 405 kg more than 1991 Opel Omega. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
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, 2011 Mercedes-Benz CLS (370 Nm @ 3500 RPM) has 208 more torque (in Nm) than 1991 Opel Omega. (162 Nm @ 4600 RPM). This means 2011 Mercedes-Benz CLS will have an easier job in driving up hills or pulling heavy equipment than 1991 Opel Omega. 2011 Mercedes-Benz CLS has automatic transmission and 1991 Opel Omega has manual transmission. 1991 Opel Omega will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2011 Mercedes-Benz CLS will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1991 Opel Omega | 2011 Mercedes-Benz CLS | |
| Make | Opel | Mercedes-Benz |
| Model | Omega | CLS |
| Year Released | 1991 | 2011 |
| Engine Position | Front | Front |
| Engine Size | 1998 cc | 3498 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Horse Power | 110 HP | 305 HP |
| Engine RPM | 5200 RPM | 3500 RPM |
| Torque | 162 Nm | 370 Nm |
| Torque RPM | 4600 RPM | 3500 RPM |
| Engine Compression Ratio | 9.4:1 | 12.0:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | 7-speed shiftable automatic |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1330 kg | 1735 kg |
| Vehicle Length | 4740 mm | 4940 mm |
| Vehicle Width | 1780 mm | 1882 mm |
| Vehicle Height | 1490 mm | 1417 mm |
| Wheelbase Size | 2740 mm | 2875 mm |
| Fuel Tank Capacity | 70 L | 80 L |
