2002 Audi A4 vs. 1991 Infiniti Q45
To start off, 2002 Audi A4 is newer by 11 year(s). Which means there will be less support and parts availability for 1991 Infiniti Q45. In addition, the cost of maintenance, including insurance, on 1991 Infiniti Q45 would be higher. At 4,494 cc (8 cylinders), 1991 Infiniti Q45 is equipped with a bigger engine. In terms of performance, 1991 Infiniti Q45 (277 HP @ 6000 RPM) has 116 more horse power than 2002 Audi A4. (161 HP @ 5700 RPM) In normal driving conditions, 1991 Infiniti Q45 should accelerate faster than 2002 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 1991 Infiniti Q45 weights approximately 280 kg more than 2002 Audi A4. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2002 Audi A4 is four wheel drive (4WD), it will have significant more traction and grip than 1991 Infiniti Q45. In wet, icy, snow, or gravel driving conditions, 2002 Audi A4 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, 1991 Infiniti Q45 (397 Nm @ 4000 RPM) has 172 more torque (in Nm) than 2002 Audi A4. (225 Nm @ 1950 RPM). This means 1991 Infiniti Q45 will have an easier job in driving up hills or pulling heavy equipment than 2002 Audi A4. 1991 Infiniti Q45 has automatic transmission and 2002 Audi A4 has manual transmission. 2002 Audi A4 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 1991 Infiniti Q45 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2002 Audi A4 | 1991 Infiniti Q45 | |
| Make | Audi | Infiniti |
| Model | A4 | Q45 |
| Year Released | 2002 | 1991 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 1781 cc | 4494 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 161 HP | 277 HP |
| Engine RPM | 5700 RPM | 6000 RPM |
| Torque | 225 Nm | 397 Nm |
| Torque RPM | 1950 RPM | 4000 RPM |
| Engine Bore Size | 81 mm | 93 mm |
| Engine Stroke Size | 86.4 mm | 82.7 mm |
| Top Speed | 226 km/hour | 246 km/hour |
| Drive Type | 4WD | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1470 kg | 1750 kg |
| Vehicle Length | 4550 mm | 5080 mm |
| Vehicle Width | 1780 mm | 1830 mm |
| Vehicle Height | 1430 mm | 1440 mm |
| Wheelbase Size | 2760 mm | 2890 mm |
| Fuel Tank Capacity | 66 L | 72 L |
