1991 Buick Roadmaster vs. 2009 Infiniti FX
To start off, 2009 Infiniti FX 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 5,019 cc (8 cylinders), 2009 Infiniti FX is equipped with a bigger engine. In terms of performance, 2009 Infiniti FX (390 HP @ 6500 RPM) has 222 more horse power than 1991 Buick Roadmaster. (168 HP @ 4200 RPM) In normal driving conditions, 2009 Infiniti FX should accelerate faster than 1991 Buick Roadmaster.
Because 2009 Infiniti FX 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 Infiniti FX 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, 2009 Infiniti FX (501 Nm @ 4400 RPM) has 155 more torque (in Nm) than 1991 Buick Roadmaster. (346 Nm @ 2400 RPM). This means 2009 Infiniti FX will have an easier job in driving up hills or pulling heavy equipment than 1991 Buick Roadmaster.
Compare all specifications:
| 1991 Buick Roadmaster | 2009 Infiniti FX | |
| Make | Buick | Infiniti |
| Model | Roadmaster | FX |
| Year Released | 1991 | 2009 |
| Body Type | Station Wagon | Crossover |
| Engine Position | Front | Front |
| Engine Size | 5002 cc | 5019 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Horse Power | 168 HP | 390 HP |
| Engine RPM | 4200 RPM | 6500 RPM |
| Torque | 346 Nm | 501 Nm |
| Torque RPM | 2400 RPM | 4400 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Length | 5540 mm | 4870 mm |
| Vehicle Width | 2040 mm | 1930 mm |
| Vehicle Height | 1540 mm | 1690 mm |
| Wheelbase Size | 2950 mm | 2890 mm |
