2009 Mercedes-Benz GL vs. 1989 Porsche 928
To start off, 2009 Mercedes-Benz GL is newer by 20 year(s). Which means there will be less support and parts availability for 1989 Porsche 928. In addition, the cost of maintenance, including insurance, on 1989 Porsche 928 would be higher. At 5,461 cc (8 cylinders), 2009 Mercedes-Benz GL is equipped with a bigger engine. In terms of performance, 2009 Mercedes-Benz GL (382 HP @ 6000 RPM) has 76 more horse power than 1989 Porsche 928. (306 HP @ 5900 RPM). In normal driving conditions, 2009 Mercedes-Benz GL should accelerate faster than 1989 Porsche 928. With that said, vehicle weight also plays an important factor in acceleration. 2009 Mercedes-Benz GL weights approximately 915 kg more than 1989 Porsche 928. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2009 Mercedes-Benz GL is four wheel drive (4WD), it will have significant more traction and grip than 1989 Porsche 928. In wet, icy, snow, or gravel driving conditions, 2009 Mercedes-Benz GL 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, 2009 Mercedes-Benz GL (531 Nm @ 2800 RPM) has 123 more torque (in Nm) than 1989 Porsche 928. (408 Nm @ 4100 RPM). This means 2009 Mercedes-Benz GL will have an easier job in driving up hills or pulling heavy equipment than 1989 Porsche 928.
Compare all specifications:
| 2009 Mercedes-Benz GL | 1989 Porsche 928 | |
| Make | Mercedes-Benz | Porsche |
| Model | GL | 928 |
| Year Released | 2009 | 1989 |
| Body Type | SUV | Coupe |
| Engine Position | Front | Front |
| Engine Size | 5461 cc | 4664 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | in-line |
| Horse Power | 382 HP | 306 HP |
| Engine RPM | 6000 RPM | 5900 RPM |
| Torque | 531 Nm | 408 Nm |
| Torque RPM | 2800 RPM | 4100 RPM |
| Engine Bore Size | 98 mm | 97.1 mm |
| Engine Stroke Size | 90.5 mm | 78.9 mm |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | 4WD | Rear |
| Number of Seats | 7 seats | 4 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 2445 kg | 1530 kg |
| Vehicle Length | 5090 mm | 4450 mm |
| Vehicle Width | 1850 mm | 1840 mm |
| Vehicle Height | 1930 mm | 1290 mm |
| Wheelbase Size | 3080 mm | 2510 mm |
| Fuel Tank Capacity | 100 L | 76 L |
