1989 Ford Sierra vs. 2006 Mercedes-Benz SL
To start off, 2006 Mercedes-Benz SL is newer by 17 year(s). Which means there will be less support and parts availability for 1989 Ford Sierra. In addition, the cost of maintenance, including insurance, on 1989 Ford Sierra would be higher. At 5,461 cc (8 cylinders), 2006 Mercedes-Benz SL is equipped with a bigger engine. In terms of performance, 2006 Mercedes-Benz SL (383 HP @ 6000 RPM) has 258 more horse power than 1989 Ford Sierra. (125 HP @ 5600 RPM) In normal driving conditions, 2006 Mercedes-Benz SL should accelerate faster than 1989 Ford Sierra. With that said, vehicle weight also plays an important factor in acceleration. 2006 Mercedes-Benz SL weights approximately 782 kg more than 1989 Ford Sierra. 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, 2006 Mercedes-Benz SL (530 Nm @ 2800 RPM) has 356 more torque (in Nm) than 1989 Ford Sierra. (174 Nm @ 2500 RPM). This means 2006 Mercedes-Benz SL will have an easier job in driving up hills or pulling heavy equipment than 1989 Ford Sierra. 2006 Mercedes-Benz SL has automatic transmission and 1989 Ford Sierra has manual transmission. 1989 Ford Sierra will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2006 Mercedes-Benz SL will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1989 Ford Sierra | 2006 Mercedes-Benz SL | |
| Make | Ford | Mercedes-Benz |
| Model | Sierra | SL |
| Year Released | 1989 | 2006 |
| Engine Position | Front | Front |
| Engine Size | 1998 cc | 5461 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Horse Power | 125 HP | 383 HP |
| Engine RPM | 5600 RPM | 6000 RPM |
| Torque | 174 Nm | 530 Nm |
| Torque RPM | 2500 RPM | 2800 RPM |
| Engine Bore Size | 86 mm | 98 mm |
| Engine Stroke Size | 86 mm | 90.5 mm |
| Engine Compression Ratio | 10.3:1 | 10.7:1 |
| Top Speed | 192 km/hour | 250 km/hour |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1128 kg | 1910 kg |
| Vehicle Length | 4470 mm | 4540 mm |
| Vehicle Width | 1710 mm | 1830 mm |
| Vehicle Height | 1380 mm | 1300 mm |
| Wheelbase Size | 2610 mm | 2570 mm |
| Fuel Tank Capacity | 60 L | 80 L |
