2009 Audi A4 vs. 1991 Buick Roadmaster
To start off, 2009 Audi A4 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 Audi A4 (187 HP @ 5700 RPM) has 10 more horse power than 1991 Buick Roadmaster. (177 HP @ 4200 RPM). In normal driving conditions, 2009 Audi A4 should accelerate faster than 1991 Buick Roadmaster. With that said, vehicle weight also plays an important factor in acceleration. 1991 Buick Roadmaster weights approximately 365 kg more than 2009 Audi A4.
Because 2009 Audi A4 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 Audi A4 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 153 more torque (in Nm) than 2009 Audi A4. (240 Nm @ 1950 RPM). This means 1991 Buick Roadmaster will have an easier job in driving up hills or pulling heavy equipment than 2009 Audi A4. 1991 Buick Roadmaster has automatic transmission and 2009 Audi A4 has manual transmission. 2009 Audi A4 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 1991 Buick Roadmaster will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2009 Audi A4 | 1991 Buick Roadmaster | |
| Make | Audi | Buick |
| Model | A4 | Roadmaster |
| Year Released | 2009 | 1991 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 1781 cc | 5731 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Horse Power | 187 HP | 177 HP |
| Engine RPM | 5700 RPM | 4200 RPM |
| Torque | 240 Nm | 393 Nm |
| Torque RPM | 1950 RPM | 2400 RPM |
| Engine Compression Ratio | 9.3:1 | 8.0:1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | 4WD | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1475 kg | 1840 kg |
| Vehicle Length | 4550 mm | 5280 mm |
| Vehicle Width | 1780 mm | 2040 mm |
| Vehicle Height | 1430 mm | 1650 mm |
| Wheelbase Size | 2660 mm | 2950 mm |
| Fuel Tank Capacity | 66 L | 75 L |
