2007 BMW X3 vs. 1990 Infiniti Q45
To start off, 2007 BMW X3 is newer by 17 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 88 more horse power than 2007 BMW X3. (189 HP @ 6000 RPM) In normal driving conditions, 1990 Infiniti Q45 should accelerate faster than 2007 BMW X3. With that said, vehicle weight also plays an important factor in acceleration. 1990 Infiniti Q45 weights approximately 10 kg more than 2007 BMW X3. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2007 BMW X3 is four wheel drive (4WD), it will have significant more traction and grip than 1990 Infiniti Q45. In wet, icy, snow, or gravel driving conditions, 2007 BMW X3 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, 1990 Infiniti Q45 (396 Nm @ 4000 RPM) has 151 more torque (in Nm) than 2007 BMW X3. (245 Nm @ 3500 RPM). This means 1990 Infiniti Q45 will have an easier job in driving up hills or pulling heavy equipment than 2007 BMW X3. 1990 Infiniti Q45 has automatic transmission and 2007 BMW X3 has manual transmission. 2007 BMW X3 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 1990 Infiniti Q45 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2007 BMW X3 | 1990 Infiniti Q45 | |
| Make | BMW | Infiniti |
| Model | X3 | Q45 |
| Year Released | 2007 | 1990 |
| Body Type | SUV | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2494 cc | 4493 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 189 HP | 277 HP |
| Engine RPM | 6000 RPM | 6000 RPM |
| Torque | 245 Nm | 396 Nm |
| Torque RPM | 3500 RPM | 4000 RPM |
| Engine Bore Size | 84.1 mm | 93 mm |
| Engine Stroke Size | 75 mm | 82.7 mm |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | 4WD | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1740 kg | 1750 kg |
| Vehicle Length | 4570 mm | 5080 mm |
| Vehicle Width | 1680 mm | 1830 mm |
| Vehicle Height | 1860 mm | 1440 mm |
| Wheelbase Size | 2800 mm | 2890 mm |
| Fuel Tank Capacity | 67 L | 72 L |
