2006 Audi S4 vs. 1991 Buick Roadmaster
To start off, 2006 Audi S4 is newer by 15 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, 2006 Audi S4 (339 HP @ 7000 RPM) has 162 more horse power than 1991 Buick Roadmaster. (177 HP @ 4200 RPM). In normal driving conditions, 2006 Audi S4 should accelerate faster than 1991 Buick Roadmaster. With that said, vehicle weight also plays an important factor in acceleration. 1991 Buick Roadmaster weights approximately 565 kg more than 2006 Audi S4.
Because 2006 Audi S4 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, 2006 Audi S4 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, 2006 Audi S4 (410 Nm @ 3500 RPM) has 17 more torque (in Nm) than 1991 Buick Roadmaster. (393 Nm @ 2400 RPM). This means 2006 Audi S4 will have an easier job in driving up hills or pulling heavy equipment than 1991 Buick Roadmaster. 1991 Buick Roadmaster has automatic transmission and 2006 Audi S4 has manual transmission. 2006 Audi S4 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:
| 2006 Audi S4 | 1991 Buick Roadmaster | |
| Make | Audi | Buick |
| Model | S4 | Roadmaster |
| Year Released | 2006 | 1991 |
| Body Type | Station Wagon | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4162 cc | 5731 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Horse Power | 339 HP | 177 HP |
| Engine RPM | 7000 RPM | 4200 RPM |
| Torque | 410 Nm | 393 Nm |
| Torque RPM | 3500 RPM | 2400 RPM |
| Engine Compression Ratio | 11.0:1 | 8.0:1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | 4WD | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1275 kg | 1840 kg |
| Vehicle Length | 4590 mm | 5280 mm |
| Vehicle Width | 1730 mm | 2040 mm |
| Vehicle Height | 1430 mm | 1650 mm |
| Wheelbase Size | 2650 mm | 2950 mm |
| Fuel Tank Capacity | 63 L | 75 L |
