2007 Mercedes-Benz GL vs. 1977 Porsche 928
To start off, 2007 Mercedes-Benz GL is newer by 30 year(s). Which means there will be less support and parts availability for 1977 Porsche 928. In addition, the cost of maintenance, including insurance, on 1977 Porsche 928 would be higher. At 4,473 cc (8 cylinders), 1977 Porsche 928 is equipped with a bigger engine. In terms of performance, 1977 Porsche 928 (237 HP @ 5250 RPM) has 22 more horse power than 2007 Mercedes-Benz GL. (215 HP @ 3800 RPM) In normal driving conditions, 1977 Porsche 928 should accelerate faster than 2007 Mercedes-Benz GL. With that said, vehicle weight also plays an important factor in acceleration. 2007 Mercedes-Benz GL weights approximately 1009 kg more than 1977 Porsche 928.
Because 2007 Mercedes-Benz GL is four wheel drive (4WD), it will have significant more traction and grip than 1977 Porsche 928. In wet, icy, snow, or gravel driving conditions, 2007 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, 2007 Mercedes-Benz GL (540 Nm @ 1400 RPM) has 177 more torque (in Nm) than 1977 Porsche 928. (363 Nm @ 3600 RPM). This means 2007 Mercedes-Benz GL will have an easier job in driving up hills or pulling heavy equipment than 1977 Porsche 928.
Compare all specifications:
| 2007 Mercedes-Benz GL | 1977 Porsche 928 | |
| Make | Mercedes-Benz | Porsche |
| Model | GL | 928 |
| Year Released | 2007 | 1977 |
| Body Type | SUV | Coupe |
| Engine Position | Front | Front |
| Engine Size | 2987 cc | 4473 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 215 HP | 237 HP |
| Engine RPM | 3800 RPM | 5250 RPM |
| Torque | 540 Nm | 363 Nm |
| Torque RPM | 1400 RPM | 3600 RPM |
| Engine Bore Size | 83 mm | 95 mm |
| Engine Stroke Size | 92 mm | 78.9 mm |
| Engine Compression Ratio | 17.7:1 | 10.0:1 |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 7 seats | 4 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 2459 kg | 1450 kg |
| Vehicle Length | 5090 mm | 4450 mm |
| Vehicle Width | 1850 mm | 1840 mm |
| Vehicle Height | 1930 mm | 1320 mm |
| Wheelbase Size | 3080 mm | 2510 mm |
| Fuel Tank Capacity | 100 L | 85 L |
