1991 BMW 518 vs. 2011 Audi A6
To start off, 2011 Audi A6 is newer by 20 year(s). Which means there will be less support and parts availability for 1991 BMW 518. In addition, the cost of maintenance, including insurance, on 1991 BMW 518 would be higher. At 4,200 cc (8 cylinders), 2011 Audi A6 is equipped with a bigger engine. In terms of performance, 2011 Audi A6 (350 HP @ 6800 RPM) has 236 more horse power than 1991 BMW 518. (114 HP @ 5500 RPM) In normal driving conditions, 2011 Audi A6 should accelerate faster than 1991 BMW 518.
Because 2011 Audi A6 is four wheel drive (4WD), it will have significant more traction and grip than 1991 BMW 518. In wet, icy, snow, or gravel driving conditions, 2011 Audi A6 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, 2011 Audi A6 (440 Nm @ 3500 RPM) has 275 more torque (in Nm) than 1991 BMW 518. (165 Nm @ 4250 RPM). This means 2011 Audi A6 will have an easier job in driving up hills or pulling heavy equipment than 1991 BMW 518. 2011 Audi A6 has automatic transmission and 1991 BMW 518 has manual transmission. 1991 BMW 518 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2011 Audi A6 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1991 BMW 518 | 2011 Audi A6 | |
| Make | BMW | Audi |
| Model | 518 | A6 |
| Year Released | 1991 | 2011 |
| Body Type | Sedan | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 1766 cc | 4200 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Horse Power | 114 HP | 350 HP |
| Engine RPM | 5500 RPM | 6800 RPM |
| Torque | 165 Nm | 440 Nm |
| Torque RPM | 4250 RPM | 3500 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | 4WD |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Length | 4730 mm | 4934 mm |
| Vehicle Width | 1760 mm | 1862 mm |
| Vehicle Height | 1420 mm | 1519 mm |
| Wheelbase Size | 2770 mm | 2833 mm |
