1991 Buick Roadmaster vs. 2005 Lexus IS
To start off, 2005 Lexus IS is newer by 14 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 5,002 cc (8 cylinders), 1991 Buick Roadmaster is equipped with a bigger engine. In terms of performance, 1991 Buick Roadmaster (168 HP @ 4200 RPM) has 15 more horse power than 2005 Lexus IS. (153 HP @ 6200 RPM). In normal driving conditions, 1991 Buick Roadmaster should accelerate faster than 2005 Lexus IS. With that said, vehicle weight also plays an important factor in acceleration. 1991 Buick Roadmaster weights approximately 545 kg more than 2005 Lexus IS. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are rear wheel drive (RWD) - it offers better handling in dry conditions; in addition, if you are looking to drift, both vehicles do the job better than front wheel drive vehicles. 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 (346 Nm @ 2400 RPM) has 151 more torque (in Nm) than 2005 Lexus IS. (195 Nm @ 4600 RPM). This means 1991 Buick Roadmaster will have an easier job in driving up hills or pulling heavy equipment than 2005 Lexus IS.
Compare all specifications:
| 1991 Buick Roadmaster | 2005 Lexus IS | |
| Make | Buick | Lexus |
| Model | Roadmaster | IS |
| Year Released | 1991 | 2005 |
| Body Type | Station Wagon | Sedan |
| Engine Position | Front | Front |
| Engine Size | 5002 cc | 1988 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Horse Power | 168 HP | 153 HP |
| Engine RPM | 4200 RPM | 6200 RPM |
| Torque | 346 Nm | 195 Nm |
| Torque RPM | 2400 RPM | 4600 RPM |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | Rear | Rear |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 2000 kg | 1455 kg |
| Vehicle Length | 5540 mm | 4410 mm |
| Vehicle Width | 2040 mm | 1730 mm |
| Vehicle Height | 1540 mm | 1430 mm |
| Wheelbase Size | 2950 mm | 2680 mm |
