2003 Buick Rainier vs. 2006 Infiniti Q45
To start off, 2006 Infiniti Q45 is newer by 3 year(s). Which means there will be less support and parts availability for 2003 Buick Rainier. In addition, the cost of maintenance, including insurance, on 2003 Buick Rainier would be higher. At 5,300 cc (8 cylinders), 2003 Buick Rainier is equipped with a bigger engine. In terms of performance, 2006 Infiniti Q45 (340 HP @ 6400 RPM) has 54 more horse power than 2003 Buick Rainier. (286 HP @ 5200 RPM) In normal driving conditions, 2006 Infiniti Q45 should accelerate faster than 2003 Buick Rainier. With that said, vehicle weight also plays an important factor in acceleration. 2003 Buick Rainier weights approximately 885 kg more than 2006 Infiniti Q45.
Because 2003 Buick Rainier is four wheel drive (4WD), it will have significant more traction and grip than 2006 Infiniti Q45. In wet, icy, snow, or gravel driving conditions, 2003 Buick Rainier 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 Infiniti Q45 (452 Nm @ 4000 RPM) has 11 more torque (in Nm) than 2003 Buick Rainier. (441 Nm @ 4000 RPM). This means 2006 Infiniti Q45 will have an easier job in driving up hills or pulling heavy equipment than 2003 Buick Rainier.
Compare all specifications:
| 2003 Buick Rainier | 2006 Infiniti Q45 | |
| Make | Buick | Infiniti |
| Model | Rainier | Q45 |
| Year Released | 2003 | 2006 |
| Body Type | SUV | Sedan |
| Engine Position | Front | Front |
| Engine Size | 5300 cc | 4494 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Horse Power | 286 HP | 340 HP |
| Engine RPM | 5200 RPM | 6400 RPM |
| Torque | 441 Nm | 452 Nm |
| Torque RPM | 4000 RPM | 4000 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | 4WD | Rear |
| Number of Seats | 5 seats | 5 seats |
| Vehicle Weight | 2205 kg | 1320 kg |
| Vehicle Length | 4920 mm | 5110 mm |
| Vehicle Width | 1920 mm | 1850 mm |
| Vehicle Height | 1900 mm | 1500 mm |
| Wheelbase Size | 2880 mm | 2880 mm |
