1991 Buick Roadmaster vs. 2009 Mazda CX-9
To start off, 2009 Mazda CX-9 is newer by 18 year(s). Which means there will be less support and parts availability for 1991 Buick Roadmaster. In addition, the cost of maintenance, including insurance, on 1991 Buick Roadmaster would be higher. At 5,731 cc (8 cylinders), 1991 Buick Roadmaster is equipped with a bigger engine. In terms of performance, 2009 Mazda CX-9 (273 HP @ 6250 RPM) has 96 more horse power than 1991 Buick Roadmaster. (177 HP @ 4200 RPM) In normal driving conditions, 2009 Mazda CX-9 should accelerate faster than 1991 Buick Roadmaster. With that said, vehicle weight also plays an important factor in acceleration. 1991 Buick Roadmaster weights approximately 511 kg more than 2009 Mazda CX-9.
Because 2009 Mazda CX-9 is four wheel drive (4WD), it will have significant more traction and grip than 1991 Buick Roadmaster. In wet, icy, snow, or gravel driving conditions, 2009 Mazda CX-9 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, 1991 Buick Roadmaster (393 Nm @ 2400 RPM) has 27 more torque (in Nm) than 2009 Mazda CX-9. (366 Nm @ 4500 RPM). This means 1991 Buick Roadmaster will have an easier job in driving up hills or pulling heavy equipment than 2009 Mazda CX-9.
Compare all specifications:
| 1991 Buick Roadmaster | 2009 Mazda CX-9 | |
| Make | Buick | Mazda |
| Model | Roadmaster | CX-9 |
| Year Released | 1991 | 2009 |
| Body Type | Sedan | SUV |
| Engine Position | Front | Front |
| Engine Size | 5731 cc | 3725 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | V |
| Horse Power | 177 HP | 273 HP |
| Engine RPM | 4200 RPM | 6250 RPM |
| Torque | 393 Nm | 366 Nm |
| Torque RPM | 2400 RPM | 4500 RPM |
| Engine Compression Ratio | 8.0:1 | 10.0:1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 7 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1840 kg | 1329 kg |
| Vehicle Length | 5280 mm | 5080 mm |
| Vehicle Width | 2040 mm | 1940 mm |
| Vehicle Height | 1650 mm | 1730 mm |
| Wheelbase Size | 2950 mm | 2880 mm |
| Fuel Tank Capacity | 75 L | 76 L |
