2009 Audi A5 vs. 1991 Mercedes-Benz G
To start off, 2009 Audi A5 is newer by 18 year(s). Which means there will be less support and parts availability for 1991 Mercedes-Benz G. In addition, the cost of maintenance, including insurance, on 1991 Mercedes-Benz G would be higher. At 2,299 cc (4 cylinders), 1991 Mercedes-Benz G is equipped with a bigger engine. In terms of performance, 2009 Audi A5 (168 HP @ 4800 RPM) has 43 more horse power than 1991 Mercedes-Benz G. (125 HP @ 5000 RPM). In normal driving conditions, 2009 Audi A5 should accelerate faster than 1991 Mercedes-Benz G. With that said, vehicle weight also plays an important factor in acceleration. 1991 Mercedes-Benz G weights approximately 485 kg more than 2009 Audi A5.
Because 1991 Mercedes-Benz G is four wheel drive (4WD), it will have significant more traction and grip than 2009 Audi A5. In wet, icy, snow, or gravel driving conditions, 1991 Mercedes-Benz G 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 Audi A5 (250 Nm @ 1500 RPM) has 58 more torque (in Nm) than 1991 Mercedes-Benz G. (192 Nm @ 4000 RPM). This means 2009 Audi A5 will have an easier job in driving up hills or pulling heavy equipment than 1991 Mercedes-Benz G.
Compare all specifications:
| 2009 Audi A5 | 1991 Mercedes-Benz G | |
| Make | Audi | Mercedes-Benz |
| Model | A5 | G |
| Year Released | 2009 | 1991 |
| Body Type | Coupe | SUV |
| Engine Position | Front | Front |
| Engine Size | 1798 cc | 2299 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 168 HP | 125 HP |
| Engine RPM | 4800 RPM | 5000 RPM |
| Torque | 250 Nm | 192 Nm |
| Torque RPM | 1500 RPM | 4000 RPM |
| Engine Bore Size | 82.6 mm | 95.5 mm |
| Engine Stroke Size | 84.1 mm | 80.2 mm |
| Engine Compression Ratio | 9.6:1 | 9.0:1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | Front | 4WD |
| Transmission Type | Manual | Manual |
| Number of Seats | 4 seats | 5 seats |
| Vehicle Weight | 1395 kg | 1880 kg |
| Vehicle Length | 4630 mm | 4240 mm |
| Vehicle Width | 1860 mm | 1770 mm |
| Vehicle Height | 1380 mm | 1940 mm |
| Wheelbase Size | 2760 mm | 2410 mm |
