2002 BMW Z4 vs. 1990 Infiniti Q45
To start off, 2002 BMW Z4 is newer by 12 year(s). Which means there will be less support and parts availability for 1990 Infiniti Q45. In addition, the cost of maintenance, including insurance, on 1990 Infiniti Q45 would be higher. At 4,493 cc (8 cylinders), 1990 Infiniti Q45 is equipped with a bigger engine. In terms of performance, 1990 Infiniti Q45 (277 HP @ 6000 RPM) has 50 more horse power than 2002 BMW Z4. (227 HP @ 5900 RPM) In normal driving conditions, 1990 Infiniti Q45 should accelerate faster than 2002 BMW Z4. With that said, vehicle weight also plays an important factor in acceleration. 1990 Infiniti Q45 weights approximately 364 kg more than 2002 BMW Z4. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are rear wheel drive (RWD) - it offers better handling in dry conditions; in addition, if you are looking to drift, both vehicles do the job better than front wheel drive vehicles. 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, 1990 Infiniti Q45 (396 Nm @ 4000 RPM) has 96 more torque (in Nm) than 2002 BMW Z4. (300 Nm @ 3500 RPM). This means 1990 Infiniti Q45 will have an easier job in driving up hills or pulling heavy equipment than 2002 BMW Z4.
Compare all specifications:
| 2002 BMW Z4 | 1990 Infiniti Q45 | |
| Make | BMW | Infiniti |
| Model | Z4 | Q45 |
| Year Released | 2002 | 1990 |
| Body Type | Convertible | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2996 cc | 4493 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Horse Power | 227 HP | 277 HP |
| Engine RPM | 5900 RPM | 6000 RPM |
| Torque | 300 Nm | 396 Nm |
| Torque RPM | 3500 RPM | 4000 RPM |
| Engine Bore Size | 84 mm | 93 mm |
| Engine Stroke Size | 89.6 mm | 82.7 mm |
| Top Speed | 244 km/hour | 246 km/hour |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1386 kg | 1750 kg |
| Vehicle Length | 4100 mm | 5080 mm |
| Vehicle Width | 1790 mm | 1830 mm |
| Vehicle Height | 1310 mm | 1440 mm |
| Wheelbase Size | 2500 mm | 2890 mm |
| Fuel Tank Capacity | 55 L | 72 L |
