2006 Audi Q7 vs. 1991 Buick Roadmaster
To start off, 2006 Audi Q7 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 Q7 (230 HP @ 4000 RPM) has 53 more horse power than 1991 Buick Roadmaster. (177 HP @ 4200 RPM). In normal driving conditions, 2006 Audi Q7 should accelerate faster than 1991 Buick Roadmaster. With that said, vehicle weight also plays an important factor in acceleration. 2006 Audi Q7 weights approximately 455 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 2006 Audi Q7 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 Q7 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 Q7 (500 Nm @ 1750 RPM) has 107 more torque (in Nm) than 1991 Buick Roadmaster. (393 Nm @ 2400 RPM). This means 2006 Audi Q7 will have an easier job in driving up hills or pulling heavy equipment than 1991 Buick Roadmaster.
Compare all specifications:
| 2006 Audi Q7 | 1991 Buick Roadmaster | |
| Make | Audi | Buick |
| Model | Q7 | Roadmaster |
| Year Released | 2006 | 1991 |
| Body Type | SUV | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2967 cc | 5731 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | V |
| Horse Power | 230 HP | 177 HP |
| Engine RPM | 4000 RPM | 4200 RPM |
| Torque | 500 Nm | 393 Nm |
| Torque RPM | 1750 RPM | 2400 RPM |
| Engine Compression Ratio | 17.0:1 | 8.0:1 |
| Fuel Type | Diesel | Gasoline |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 7 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 2295 kg | 1840 kg |
| Vehicle Length | 5090 mm | 5280 mm |
| Vehicle Width | 1990 mm | 2040 mm |
| Vehicle Height | 1740 mm | 1650 mm |
| Wheelbase Size | 3010 mm | 2950 mm |
| Fuel Tank Capacity | 100 L | 75 L |
