1991 Buick Roadmaster vs. 2009 Cadillac STS
To start off, 2009 Cadillac STS 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 Cadillac STS (302 HP @ 6300 RPM) has 125 more horse power than 1991 Buick Roadmaster. (177 HP @ 4200 RPM) In normal driving conditions, 2009 Cadillac STS should accelerate faster than 1991 Buick Roadmaster. With that said, vehicle weight also plays an important factor in acceleration. 1991 Buick Roadmaster weights approximately 280 kg more than 2009 Cadillac STS.
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 (393 Nm @ 2400 RPM) has 24 more torque (in Nm) than 2009 Cadillac STS. (369 Nm @ 5200 RPM). This means 1991 Buick Roadmaster will have an easier job in driving up hills or pulling heavy equipment than 2009 Cadillac STS.
Compare all specifications:
1991 Buick Roadmaster | 2009 Cadillac STS | |
Make | Buick | Cadillac |
Model | Roadmaster | STS |
Year Released | 1991 | 2009 |
Body Type | Sedan | Sedan |
Engine Position | Front | Front |
Engine Size | 5731 cc | 3600 cc |
Engine Cylinders | 8 cylinders | 6 cylinders |
Engine Type | V | V |
Horse Power | 177 HP | 302 HP |
Engine RPM | 4200 RPM | 6300 RPM |
Torque | 393 Nm | 369 Nm |
Torque RPM | 2400 RPM | 5200 RPM |
Engine Compression Ratio | 8.0:1 | 3.7:1 |
Fuel Type | Gasoline | Gasoline |
Drive Type | Rear | Rear |
Transmission Type | Automatic | Automatic |
Number of Seats | 5 seats | 5 seats |
Number of Doors | 4 doors | 4 doors |
Vehicle Weight | 1840 kg | 1560 kg |
Vehicle Length | 5280 mm | 5000 mm |
Vehicle Width | 2040 mm | 1850 mm |
Vehicle Height | 1650 mm | 1470 mm |
Wheelbase Size | 2950 mm | 2960 mm |
Fuel Tank Capacity | 75 L | 64 L |