1990 BMW 520 vs. 2009 Mercedes-Benz S
To start off, 2009 Mercedes-Benz S is newer by 19 year(s). Which means there will be less support and parts availability for 1990 BMW 520. In addition, the cost of maintenance, including insurance, on 1990 BMW 520 would be higher. At 3,498 cc (6 cylinders), 2009 Mercedes-Benz S is equipped with a bigger engine. In terms of performance, 2009 Mercedes-Benz S (268 HP @ 6000 RPM) has 123 more horse power than 1990 BMW 520. (145 HP @ 5900 RPM) In normal driving conditions, 2009 Mercedes-Benz S should accelerate faster than 1990 BMW 520. With that said, vehicle weight also plays an important factor in acceleration. 2009 Mercedes-Benz S weights approximately 288 kg more than 1990 BMW 520. 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, 2009 Mercedes-Benz S (350 Nm @ 2400 RPM) has 164 more torque (in Nm) than 1990 BMW 520. (186 Nm @ 4700 RPM). This means 2009 Mercedes-Benz S will have an easier job in driving up hills or pulling heavy equipment than 1990 BMW 520. 2009 Mercedes-Benz S has automatic transmission and 1990 BMW 520 has manual transmission. 1990 BMW 520 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2009 Mercedes-Benz S will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1990 BMW 520 | 2009 Mercedes-Benz S | |
| Make | BMW | Mercedes-Benz |
| Model | 520 | S |
| Year Released | 1990 | 2009 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 1991 cc | 3498 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Horse Power | 145 HP | 268 HP |
| Engine RPM | 5900 RPM | 6000 RPM |
| Torque | 186 Nm | 350 Nm |
| Torque RPM | 4700 RPM | 2400 RPM |
| Engine Bore Size | 80 mm | 92.9 mm |
| Engine Stroke Size | 66 mm | 86 mm |
| Engine Compression Ratio | 10.5:1 | 10.7:1 |
| Top Speed | 206 km/hour | 250 km/hour |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1542 kg | 1830 kg |
| Vehicle Length | 4730 mm | 5080 mm |
| Vehicle Width | 1760 mm | 1480 mm |
| Vehicle Height | 1420 mm | 1880 mm |
| Wheelbase Size | 2770 mm | 3040 mm |
