2009 Audi RS6 vs. 1991 BMW M12
To start off, 2009 Audi RS6 is newer by 18 year(s). Which means there will be less support and parts availability for 1991 BMW M12. In addition, the cost of maintenance, including insurance, on 1991 BMW M12 would be higher. At 4,991 cc (10 cylinders), 2009 Audi RS6 is equipped with a bigger engine. In terms of performance, 2009 Audi RS6 (572 HP @ 6250 RPM) has 276 more horse power than 1991 BMW M12. (296 HP @ 5200 RPM). In normal driving conditions, 2009 Audi RS6 should accelerate faster than 1991 BMW M12.
Because 2009 Audi RS6 is four wheel drive (4WD), it will have significant more traction and grip than 1991 BMW M12. In wet, icy, snow, or gravel driving conditions, 2009 Audi RS6 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, 2009 Audi RS6 (650 Nm @ 1500 RPM) has 200 more torque (in Nm) than 1991 BMW M12. (450 Nm @ 4100 RPM). This means 2009 Audi RS6 will have an easier job in driving up hills or pulling heavy equipment than 1991 BMW M12. 2009 Audi RS6 has automatic transmission and 1991 BMW M12 has manual transmission. 1991 BMW M12 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2009 Audi RS6 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2009 Audi RS6 | 1991 BMW M12 | |
| Make | Audi | BMW |
| Model | RS6 | M12 |
| Year Released | 2009 | 1991 |
| Body Type | Sedan | Coupe |
| Engine Position | Front | Middle |
| Engine Size | 4991 cc | 4988 cc |
| Engine Cylinders | 10 cylinders | 12 cylinders |
| Engine Type | V | V |
| Horse Power | 572 HP | 296 HP |
| Engine RPM | 6250 RPM | 5200 RPM |
| Torque | 650 Nm | 450 Nm |
| Torque RPM | 1500 RPM | 4100 RPM |
| Engine Bore Size | 84.5 mm | 84 mm |
| Engine Stroke Size | 89 mm | 75 mm |
| Engine Compression Ratio | 10.5:1 | 8.8:1 |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Length | 4930 mm | 4370 mm |
| Vehicle Width | 1900 mm | 2000 mm |
| Vehicle Height | 1460 mm | 1110 mm |
| Wheelbase Size | 2850 mm | 2610 mm |
