1991 Buick Roadmaster vs. 2007 Lexus RX
To start off, 2007 Lexus RX is newer by 16 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, 2007 Lexus RX (268 HP @ 5600 RPM) has 91 more horse power than 1991 Buick Roadmaster. (177 HP @ 4200 RPM) In normal driving conditions, 2007 Lexus RX should accelerate faster than 1991 Buick Roadmaster. With that said, vehicle weight also plays an important factor in acceleration. 1991 Buick Roadmaster weights approximately 75 kg more than 2007 Lexus RX.
Because 2007 Lexus RX 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, 2007 Lexus RX 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 106 more torque (in Nm) than 2007 Lexus RX. (287 Nm @ 4400 RPM). This means 1991 Buick Roadmaster will have an easier job in driving up hills or pulling heavy equipment than 2007 Lexus RX.
Compare all specifications:
| 1991 Buick Roadmaster | 2007 Lexus RX | |
| Make | Buick | Lexus |
| Model | Roadmaster | RX |
| Year Released | 1991 | 2007 |
| Body Type | Sedan | SUV |
| Engine Position | Front | Front |
| Engine Size | 5731 cc | 3311 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | V |
| Horse Power | 177 HP | 268 HP |
| Engine RPM | 4200 RPM | 5600 RPM |
| Torque | 393 Nm | 287 Nm |
| Torque RPM | 2400 RPM | 4400 RPM |
| Fuel Type | Gasoline | Diesel |
| Drive Type | Rear | 4WD |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1840 kg | 1765 kg |
| Vehicle Length | 5280 mm | 4760 mm |
| Vehicle Width | 2040 mm | 1850 mm |
| Vehicle Height | 1650 mm | 1690 mm |
| Wheelbase Size | 2950 mm | 2720 mm |
| Fuel Tank Capacity | 75 L | 65 L |
