2009 Audi S4 vs. 1991 Infiniti G20
To start off, 2009 Audi S4 is newer by 18 year(s). Which means there will be less support and parts availability for 1991 Infiniti G20. In addition, the cost of maintenance, including insurance, on 1991 Infiniti G20 would be higher. At 4,161 cc (8 cylinders), 2009 Audi S4 is equipped with a bigger engine. In terms of performance, 2009 Audi S4 (340 HP @ 6800 RPM) has 199 more horse power than 1991 Infiniti G20. (141 HP @ 6400 RPM). In normal driving conditions, 2009 Audi S4 should accelerate faster than 1991 Infiniti G20. With that said, vehicle weight also plays an important factor in acceleration. 1991 Infiniti G20 weights approximately 315 kg more than 2009 Audi S4.
Because 2009 Audi S4 is four wheel drive (4WD), it will have significant more traction and grip than 1991 Infiniti G20. In wet, icy, snow, or gravel driving conditions, 2009 Audi S4 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 S4 (410 Nm @ 3500 RPM) has 229 more torque (in Nm) than 1991 Infiniti G20. (181 Nm @ 4800 RPM). This means 2009 Audi S4 will have an easier job in driving up hills or pulling heavy equipment than 1991 Infiniti G20.
Compare all specifications:
| 2009 Audi S4 | 1991 Infiniti G20 | |
| Make | Audi | Infiniti |
| Model | S4 | G20 |
| Year Released | 2009 | 1991 |
| Body Type | Convertible | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4161 cc | 1998 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 340 HP | 141 HP |
| Engine RPM | 6800 RPM | 6400 RPM |
| Torque | 410 Nm | 181 Nm |
| Torque RPM | 3500 RPM | 4800 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | 4WD | Front |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 930 kg | 1245 kg |
| Vehicle Length | 4580 mm | 4450 mm |
| Vehicle Width | 1780 mm | 1700 mm |
| Vehicle Height | 1400 mm | 1400 mm |
| Wheelbase Size | 2660 mm | 2560 mm |
