1991 BMW M12 vs. 2009 Porsche Cayenne
To start off, 2009 Porsche Cayenne 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 4,988 cc (12 cylinders), 1991 BMW M12 is equipped with a bigger engine. In terms of performance, 2009 Porsche Cayenne (399 HP @ 6500 RPM) has 103 more horse power than 1991 BMW M12. (296 HP @ 5200 RPM) In normal driving conditions, 2009 Porsche Cayenne should accelerate faster than 1991 BMW M12.
Because 2009 Porsche Cayenne 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 Porsche Cayenne 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 Porsche Cayenne (500 Nm @ 3500 RPM) has 50 more torque (in Nm) than 1991 BMW M12. (450 Nm @ 4100 RPM). This means 2009 Porsche Cayenne will have an easier job in driving up hills or pulling heavy equipment than 1991 BMW M12.
Compare all specifications:
| 1991 BMW M12 | 2009 Porsche Cayenne | |
| Make | BMW | Porsche |
| Model | M12 | Cayenne |
| Year Released | 1991 | 2009 |
| Body Type | Coupe | SUV |
| Engine Position | Middle | Front |
| Engine Size | 4988 cc | 4806 cc |
| Engine Cylinders | 12 cylinders | 8 cylinders |
| Engine Type | V | V |
| Horse Power | 296 HP | 399 HP |
| Engine RPM | 5200 RPM | 6500 RPM |
| Torque | 450 Nm | 500 Nm |
| Torque RPM | 4100 RPM | 3500 RPM |
| Engine Bore Size | 84 mm | 96 mm |
| Engine Stroke Size | 75 mm | 83 mm |
| Engine Compression Ratio | 8.8:1 | 12.5:1 |
| Drive Type | Rear | 4WD |
| Transmission Type | Manual | Manual |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Length | 4370 mm | 4800 mm |
| Vehicle Width | 2000 mm | 1680 mm |
| Vehicle Height | 1110 mm | 1930 mm |
| Wheelbase Size | 2610 mm | 2860 mm |
