2007 Acura RDX vs. 1991 Opel Astra
To start off, 2007 Acura RDX is newer by 16 year(s). Which means there will be less support and parts availability for 1991 Opel Astra. In addition, the cost of maintenance, including insurance, on 1991 Opel Astra would be higher. At 2,299 cc (4 cylinders), 2007 Acura RDX is equipped with a bigger engine. In terms of performance, 2007 Acura RDX (240 HP @ 6000 RPM) has 158 more horse power than 1991 Opel Astra. (82 HP @ 5800 RPM). In normal driving conditions, 2007 Acura RDX should accelerate faster than 1991 Opel Astra.
Because 2007 Acura RDX is four wheel drive (4WD), it will have significant more traction and grip than 1991 Opel Astra. In wet, icy, snow, or gravel driving conditions, 2007 Acura RDX 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 Acura RDX (353 Nm @ 4500 RPM) has 240 more torque (in Nm) than 1991 Opel Astra. (113 Nm @ 3400 RPM). This means 2007 Acura RDX will have an easier job in driving up hills or pulling heavy equipment than 1991 Opel Astra. 2007 Acura RDX has automatic transmission and 1991 Opel Astra has manual transmission. 1991 Opel Astra will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2007 Acura RDX will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2007 Acura RDX | 1991 Opel Astra | |
| Make | Acura | Opel |
| Model | RDX | Astra |
| Year Released | 2007 | 1991 |
| Engine Position | Front | Front |
| Engine Size | 2299 cc | 1388 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 240 HP | 82 HP |
| Engine RPM | 6000 RPM | 5800 RPM |
| Torque | 353 Nm | 113 Nm |
| Torque RPM | 4500 RPM | 3400 RPM |
| Engine Bore Size | 86.4 mm | 77.6 mm |
| Engine Stroke Size | 99.1 mm | 73.4 mm |
| Engine Compression Ratio | 8.8:1 | 9.4:1 |
| Drive Type | 4WD | Front |
| Transmission Type | Automatic | Manual |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Length | 4600 mm | 4060 mm |
| Vehicle Width | 1880 mm | 1690 mm |
| Vehicle Height | 1660 mm | 1430 mm |
| Wheelbase Size | 2660 mm | 2610 mm |
