1991 BMW M12 vs. 1991 Opel Calibra
To start off, both 1991 BMW M12 and 1991 Opel Calibra were released in the same year (1991). Therefore the support and the availability on parts for both vehicles should be relatively similar. 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 181 more horse power than 1991 Opel Calibra. (115 HP @ 5200 RPM). In normal driving conditions, 1991 BMW M12 should accelerate faster than 1991 Opel Calibra.
Because 1991 Opel Calibra 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, 1991 Opel Calibra 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 @ 4100 RPM) has 276 more torque (in Nm) than 1991 Opel Calibra. (174 Nm @ 2600 RPM). This means 1991 BMW M12 will have an easier job in driving up hills or pulling heavy equipment than 1991 Opel Calibra.
Compare all specifications:
| 1991 BMW M12 | 1991 Opel Calibra | |
| Make | BMW | Opel |
| Model | M12 | Calibra |
| Year Released | 1991 | 1991 |
| Body Type | Coupe | Coupe |
| Engine Position | Middle | Front |
| Engine Size | 4988 cc | 1998 cc |
| Engine Cylinders | 12 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Horse Power | 296 HP | 115 HP |
| Engine RPM | 5200 RPM | 5200 RPM |
| Torque | 450 Nm | 174 Nm |
| Torque RPM | 4100 RPM | 2600 RPM |
| Engine Bore Size | 84 mm | 86 mm |
| Engine Stroke Size | 75 mm | 86 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 | 4500 mm |
| Vehicle Width | 2000 mm | 1680 mm |
| Vehicle Height | 1110 mm | 1330 mm |
| Wheelbase Size | 2610 mm | 2610 mm |
