1991 BMW M12 vs. 2007 Porsche 911
To start off, 2007 Porsche 911 is newer by 16 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, 2007 Porsche 911 (481 HP @ 6000 RPM) has 185 more horse power than 1991 BMW M12. (296 HP @ 5200 RPM) In normal driving conditions, 2007 Porsche 911 should accelerate faster than 1991 BMW M12.
Because 2007 Porsche 911 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, 2007 Porsche 911 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, 2007 Porsche 911 (624 Nm @ 1950 RPM) has 174 more torque (in Nm) than 1991 BMW M12. (450 Nm @ 4100 RPM). This means 2007 Porsche 911 will have an easier job in driving up hills or pulling heavy equipment than 1991 BMW M12.
Compare all specifications:
| 1991 BMW M12 | 2007 Porsche 911 | |
| Make | BMW | Porsche |
| Model | M12 | 911 |
| Year Released | 1991 | 2007 |
| Body Type | Coupe | Coupe |
| Engine Position | Middle | Rear |
| Engine Size | 4988 cc | 3605 cc |
| Engine Cylinders | 12 cylinders | 6 cylinders |
| Engine Type | V | boxer |
| Horse Power | 296 HP | 481 HP |
| Engine RPM | 5200 RPM | 6000 RPM |
| Torque | 450 Nm | 624 Nm |
| Torque RPM | 4100 RPM | 1950 RPM |
| Engine Bore Size | 84 mm | 100 mm |
| Engine Stroke Size | 75 mm | 76 mm |
| Drive Type | Rear | 4WD |
| Transmission Type | Manual | Manual |
| Number of Seats | 2 seats | 4 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Length | 4370 mm | 4460 mm |
| Vehicle Width | 2000 mm | 1860 mm |
| Vehicle Height | 1110 mm | 1310 mm |
| Wheelbase Size | 2610 mm | 2360 mm |
