1989 Ford Sierra vs. 1998 Mercedes-Benz SL
To start off, 1998 Mercedes-Benz SL is newer by 9 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 7,291 cc (12 cylinders), 1998 Mercedes-Benz SL is equipped with a bigger engine. In terms of performance, 1998 Mercedes-Benz SL (518 HP @ 5550 RPM) has 393 more horse power than 1989 Ford Sierra. (125 HP @ 5600 RPM) In normal driving conditions, 1998 Mercedes-Benz SL should accelerate faster than 1989 Ford Sierra. With that said, vehicle weight also plays an important factor in acceleration. 1998 Mercedes-Benz SL weights approximately 922 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, 1998 Mercedes-Benz SL (766 Nm @ 4000 RPM) has 592 more torque (in Nm) than 1989 Ford Sierra. (174 Nm @ 2500 RPM). This means 1998 Mercedes-Benz SL will have an easier job in driving up hills or pulling heavy equipment than 1989 Ford Sierra. 1998 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. 1998 Mercedes-Benz SL will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1989 Ford Sierra | 1998 Mercedes-Benz SL | |
| Make | Ford | Mercedes-Benz |
| Model | Sierra | SL |
| Year Released | 1989 | 1998 |
| Engine Position | Front | Front |
| Engine Size | 1998 cc | 7291 cc |
| Engine Cylinders | 4 cylinders | 12 cylinders |
| Engine Type | in-line | V |
| Horse Power | 125 HP | 518 HP |
| Engine RPM | 5600 RPM | 5550 RPM |
| Torque | 174 Nm | 766 Nm |
| Torque RPM | 2500 RPM | 4000 RPM |
| Engine Bore Size | 86 mm | 91.5 mm |
| Engine Stroke Size | 86 mm | 92.4 mm |
| 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 | 2050 kg |
| Vehicle Length | 4470 mm | 4470 mm |
| Vehicle Width | 1710 mm | 1820 mm |
| Vehicle Height | 1380 mm | 1300 mm |
| Wheelbase Size | 2610 mm | 2520 mm |
| Fuel Tank Capacity | 60 L | 70 L |
