1991 Mercedes-Benz 300 vs. 2005 Porsche 911
To start off, 2005 Porsche 911 is newer by 14 year(s). Which means there will be less support and parts availability for 1991 Mercedes-Benz 300. In addition, the cost of maintenance, including insurance, on 1991 Mercedes-Benz 300 would be higher. At 3,600 cc (6 cylinders), 2005 Porsche 911 is equipped with a bigger engine. In terms of performance, 2005 Porsche 911 (445 HP @ 5700 RPM) has 214 more horse power than 1991 Mercedes-Benz 300. (231 HP @ 5800 RPM) In normal driving conditions, 2005 Porsche 911 should accelerate faster than 1991 Mercedes-Benz 300. With that said, vehicle weight also plays an important factor in acceleration. 1991 Mercedes-Benz 300 weights approximately 310 kg more than 2005 Porsche 911.
Because 2005 Porsche 911 is four wheel drive (4WD), it will have significant more traction and grip than 1991 Mercedes-Benz 300. In wet, icy, snow, or gravel driving conditions, 2005 Porsche 911 will offer significantly more control. 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, 2005 Porsche 911 (620 Nm @ 3500 RPM) has 310 more torque (in Nm) than 1991 Mercedes-Benz 300. (310 Nm @ 4100 RPM). This means 2005 Porsche 911 will have an easier job in driving up hills or pulling heavy equipment than 1991 Mercedes-Benz 300.
Compare all specifications:
| 1991 Mercedes-Benz 300 | 2005 Porsche 911 | |
| Make | Mercedes-Benz | Porsche |
| Model | 300 | 911 |
| Year Released | 1991 | 2005 |
| Engine Position | Front | Rear |
| Engine Size | 3198 cc | 3600 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | boxer |
| Horse Power | 231 HP | 445 HP |
| Engine RPM | 5800 RPM | 5700 RPM |
| Torque | 310 Nm | 620 Nm |
| Torque RPM | 4100 RPM | 3500 RPM |
| Engine Bore Size | 89.9 mm | 100 mm |
| Engine Stroke Size | 84 mm | 76.4 mm |
| Engine Compression Ratio | 10.0:1 | 9.4:1 |
| Top Speed | 230 km/hour | 307 km/hour |
| Acceleration 0-100mph | 8.9 seconds | 4.2 seconds |
| Drive Type | Rear | 4WD |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1900 kg | 1590 kg |
| Vehicle Length | 5110 mm | 4440 mm |
| Vehicle Width | 1890 mm | 1840 mm |
| Vehicle Height | 1500 mm | 1300 mm |
| Wheelbase Size | 3050 mm | 2360 mm |
| Fuel Tank Capacity | 100 L | 64 L |
