2006 Audi A4 vs. 1991 BMW M12
To start off, 2006 Audi A4 is newer by 15 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 109 more horse power than 2006 Audi A4. (187 HP @ 5700 RPM) In normal driving conditions, 1991 BMW M12 should accelerate faster than 2006 Audi A4.
Because 1991 BMW M12 is rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 1991 BMW M12. However, in wet, icy, snow, or gravel driving conditions, 2006 Audi A4, being front wheel drive (FWD), will offer much better control with better grip. 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 @ 4100 RPM) has 210 more torque (in Nm) than 2006 Audi A4. (240 Nm @ 1950 RPM). This means 1991 BMW M12 will have an easier job in driving up hills or pulling heavy equipment than 2006 Audi A4.
Compare all specifications:
| 2006 Audi A4 | 1991 BMW M12 | |
| Make | Audi | BMW |
| Model | A4 | M12 |
| Year Released | 2006 | 1991 |
| Body Type | Sedan | Coupe |
| Engine Position | Front | Middle |
| Engine Size | 1781 cc | 4988 cc |
| Engine Cylinders | 4 cylinders | 12 cylinders |
| Engine Type | in-line | V |
| Horse Power | 187 HP | 296 HP |
| Engine RPM | 5700 RPM | 5200 RPM |
| Torque | 240 Nm | 450 Nm |
| Torque RPM | 1950 RPM | 4100 RPM |
| Engine Bore Size | 81 mm | 84 mm |
| Engine Stroke Size | 86.4 mm | 75 mm |
| Engine Compression Ratio | 9.3:1 | 8.8:1 |
| Drive Type | Front | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Length | 4550 mm | 4370 mm |
| Vehicle Width | 1780 mm | 2000 mm |
| Vehicle Height | 1430 mm | 1110 mm |
| Wheelbase Size | 2660 mm | 2610 mm |
