1991 BMW M12 vs. 2005 MG ZR
To start off, 2005 MG ZR 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 138 more horse power than 2005 MG ZR. (158 HP @ 6900 RPM). In normal driving conditions, 1991 BMW M12 should accelerate faster than 2005 MG ZR.
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, 2005 MG ZR, 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 273 more torque (in Nm) than 2005 MG ZR. (177 Nm @ 4700 RPM). This means 1991 BMW M12 will have an easier job in driving up hills or pulling heavy equipment than 2005 MG ZR.
Compare all specifications:
| 1991 BMW M12 | 2005 MG ZR | |
| Make | BMW | MG |
| Model | M12 | ZR |
| Year Released | 1991 | 2005 |
| Body Type | Coupe | Hatchback |
| Engine Position | Middle | Front |
| Engine Size | 4988 cc | 1796 cc |
| Engine Cylinders | 12 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Horse Power | 296 HP | 158 HP |
| Engine RPM | 5200 RPM | 6900 RPM |
| Torque | 450 Nm | 177 Nm |
| Torque RPM | 4100 RPM | 4700 RPM |
| Engine Bore Size | 84 mm | 80 mm |
| Engine Stroke Size | 75 mm | 89.3 mm |
| Engine Compression Ratio | 8.8:1 | 10.5:1 |
| Drive Type | Rear | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 3 doors |
| Vehicle Length | 4370 mm | 4020 mm |
| Vehicle Width | 2000 mm | 1690 mm |
| Vehicle Height | 1110 mm | 1430 mm |
| Wheelbase Size | 2610 mm | 2510 mm |
