2005 Audi A4 vs. 1991 BMW M12
To start off, 2005 Audi A4 is newer by 14 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 4,988 cc (12 cylinders), 1991 BMW M12 is equipped with a bigger engine. In terms of performance, 1991 BMW M12 (296 HP @ 5200 RPM) has 76 more horse power than 2005 Audi A4. (220 HP @ 6200 RPM) In normal driving conditions, 1991 BMW M12 should accelerate faster than 2005 Audi A4.
Because 2005 Audi A4 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, 2005 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 BMW M12 (450 Nm) has 150 more torque (in Nm) than 2005 Audi A4. (300 Nm). This means 1991 BMW M12 will have an easier job in driving up hills or pulling heavy equipment than 2005 Audi A4.
Compare all specifications:
| 2005 Audi A4 | 1991 BMW M12 | |
| Make | Audi | BMW |
| Model | A4 | M12 |
| Year Released | 2005 | 1991 |
| Body Type | Station Wagon | Coupe |
| Engine Position | Front | Middle |
| Engine Size | 2967 cc | 4988 cc |
| Engine Cylinders | 6 cylinders | 12 cylinders |
| Engine Type | V | V |
| Horse Power | 220 HP | 296 HP |
| Engine RPM | 6200 RPM | 5200 RPM |
| Torque | 300 Nm | 450 Nm |
| Engine Bore Size | 83 mm | 84 mm |
| Engine Stroke Size | 93 mm | 75 mm |
| Engine Compression Ratio | 10.1:1 | 8.8:1 |
| Drive Type | 4WD | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Length | 4550 mm | 4370 mm |
| Vehicle Width | 1770 mm | 2000 mm |
| Vehicle Height | 1430 mm | 1110 mm |
| Wheelbase Size | 2770 mm | 2610 mm |
