1991 Buick Roadmaster vs. 2007 Cadillac SRX
To start off, 2007 Cadillac SRX 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 Cadillac SRX (321 HP @ 6400 RPM) has 144 more horse power than 1991 Buick Roadmaster. (177 HP @ 4200 RPM) In normal driving conditions, 2007 Cadillac SRX should accelerate faster than 1991 Buick Roadmaster. With that said, vehicle weight also plays an important factor in acceleration. 2007 Cadillac SRX weights approximately 286 kg more than 1991 Buick Roadmaster. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2007 Cadillac SRX 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 Cadillac SRX 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, 2007 Cadillac SRX (427 Nm @ 4400 RPM) has 34 more torque (in Nm) than 1991 Buick Roadmaster. (393 Nm @ 2400 RPM). This means 2007 Cadillac SRX will have an easier job in driving up hills or pulling heavy equipment than 1991 Buick Roadmaster.
Compare all specifications:
| 1991 Buick Roadmaster | 2007 Cadillac SRX | |
| Make | Buick | Cadillac |
| Model | Roadmaster | SRX |
| Year Released | 1991 | 2007 |
| Body Type | Sedan | SUV |
| Engine Position | Front | Front |
| Engine Size | 5731 cc | 4565 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Horse Power | 177 HP | 321 HP |
| Engine RPM | 4200 RPM | 6400 RPM |
| Torque | 393 Nm | 427 Nm |
| Torque RPM | 2400 RPM | 4400 RPM |
| Engine Compression Ratio | 8.0:1 | 10.5:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | Rear | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1840 kg | 2126 kg |
| Vehicle Length | 5280 mm | 4960 mm |
| Vehicle Width | 2040 mm | 1850 mm |
| Vehicle Height | 1650 mm | 1730 mm |
| Wheelbase Size | 2950 mm | 2960 mm |
| Fuel Tank Capacity | 75 L | 76 L |
