2007 Buick Rainier vs. 2003 Daihatsu Copen
To start off, 2007 Buick Rainier is newer by 4 year(s). Which means there will be less support and parts availability for 2003 Daihatsu Copen. In addition, the cost of maintenance, including insurance, on 2003 Daihatsu Copen would be higher. At 4,162 cc (6 cylinders), 2007 Buick Rainier is equipped with a bigger engine. In terms of performance, 2007 Buick Rainier (292 HP @ 6000 RPM) has 225 more horse power than 2003 Daihatsu Copen. (67 HP @ 6000 RPM). In normal driving conditions, 2007 Buick Rainier should accelerate faster than 2003 Daihatsu Copen. With that said, vehicle weight also plays an important factor in acceleration. 2007 Buick Rainier weights approximately 700 kg more than 2003 Daihatsu Copen. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2007 Buick Rainier is four wheel drive (4WD), it will have significant more traction and grip than 2003 Daihatsu Copen. In wet, icy, snow, or gravel driving conditions, 2007 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, 2007 Buick Rainier (376 Nm @ 4800 RPM) has 274 more torque (in Nm) than 2003 Daihatsu Copen. (102 Nm @ 3200 RPM). This means 2007 Buick Rainier will have an easier job in driving up hills or pulling heavy equipment than 2003 Daihatsu Copen. 2007 Buick Rainier has automatic transmission and 2003 Daihatsu Copen has manual transmission. 2003 Daihatsu Copen will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2007 Buick Rainier will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2007 Buick Rainier | 2003 Daihatsu Copen | |
| Make | Buick | Daihatsu |
| Model | Rainier | Copen |
| Year Released | 2007 | 2003 |
| Body Type | SUV | Roadster |
| Engine Position | Front | Front |
| Engine Size | 4162 cc | 657 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 292 HP | 67 HP |
| Engine RPM | 6000 RPM | 6000 RPM |
| Torque | 376 Nm | 102 Nm |
| Torque RPM | 4800 RPM | 3200 RPM |
| Drive Type | 4WD | Front |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1550 kg | 850 kg |
| Vehicle Length | 4920 mm | 3400 mm |
| Vehicle Width | 1920 mm | 1480 mm |
| Vehicle Height | 1900 mm | 1250 mm |
| Wheelbase Size | 2880 mm | 2240 mm |
| Fuel Tank Capacity | 83 L | 43 L |
