2006 Audi S4 vs. 1989 Infiniti Q45
To start off, 2006 Audi S4 is newer by 17 year(s). Which means there will be less support and parts availability for 1989 Infiniti Q45. In addition, the cost of maintenance, including insurance, on 1989 Infiniti Q45 would be higher. At 4,494 cc (8 cylinders), 1989 Infiniti Q45 is equipped with a bigger engine. In terms of performance, 2006 Audi S4 (339 HP @ 7000 RPM) has 62 more horse power than 1989 Infiniti Q45. (277 HP @ 6000 RPM). In normal driving conditions, 2006 Audi S4 should accelerate faster than 1989 Infiniti Q45. With that said, vehicle weight also plays an important factor in acceleration. 1989 Infiniti Q45 weights approximately 15 kg more than 2006 Audi S4.
Because 2006 Audi S4 is four wheel drive (4WD), it will have significant more traction and grip than 1989 Infiniti Q45. In wet, icy, snow, or gravel driving conditions, 2006 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, 2006 Audi S4 (410 Nm @ 3500 RPM) has 14 more torque (in Nm) than 1989 Infiniti Q45. (396 Nm @ 4000 RPM). This means 2006 Audi S4 will have an easier job in driving up hills or pulling heavy equipment than 1989 Infiniti Q45. 1989 Infiniti Q45 has automatic transmission and 2006 Audi S4 has manual transmission. 2006 Audi S4 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 1989 Infiniti Q45 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2006 Audi S4 | 1989 Infiniti Q45 | |
| Make | Audi | Infiniti |
| Model | S4 | Q45 |
| Year Released | 2006 | 1989 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4162 cc | 4494 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 339 HP | 277 HP |
| Engine RPM | 7000 RPM | 6000 RPM |
| Torque | 410 Nm | 396 Nm |
| Torque RPM | 3500 RPM | 4000 RPM |
| Engine Bore Size | 84.5 mm | 93.1 mm |
| Engine Stroke Size | 92.8 mm | 82.7 mm |
| Engine Compression Ratio | 11.0:1 | 10.2:1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | 4WD | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1735 kg | 1750 kg |
| Vehicle Length | 4580 mm | 5080 mm |
| Vehicle Width | 1790 mm | 1830 mm |
| Vehicle Height | 1420 mm | 1440 mm |
| Wheelbase Size | 2660 mm | 2890 mm |
| Fuel Tank Capacity | 63 L | 72 L |
