1991 Alpina B vs. 1991 Opel Calibra
To start off, both 1991 Alpina B 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 5,646 cc (12 cylinders), 1991 Alpina B is equipped with a bigger engine. In terms of performance, 1991 Alpina B (410 HP @ 5400 RPM) has 209 more horse power than 1991 Opel Calibra. (201 HP @ 5600 RPM). In normal driving conditions, 1991 Alpina B should accelerate faster than 1991 Opel Calibra. With that said, vehicle weight also plays an important factor in acceleration. 1991 Alpina B weights approximately 443 kg more than 1991 Opel Calibra. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 1991 Opel Calibra is four wheel drive (4WD), it will have significant more traction and grip than 1991 Alpina B. 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 Alpina B (570 Nm @ 4000 RPM) has 290 more torque (in Nm) than 1991 Opel Calibra. (280 Nm @ 2400 RPM). This means 1991 Alpina B will have an easier job in driving up hills or pulling heavy equipment than 1991 Opel Calibra.
Compare all specifications:
| 1991 Alpina B | 1991 Opel Calibra | |
| Make | Alpina | Opel |
| Model | B | Calibra |
| Year Released | 1991 | 1991 |
| Engine Size | 5646 cc | 1998 cc |
| Engine Cylinders | 12 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 410 HP | 201 HP |
| Engine RPM | 5400 RPM | 5600 RPM |
| Torque | 570 Nm | 280 Nm |
| Torque RPM | 4000 RPM | 2400 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | 4WD |
| Transmission Type | Manual | Manual |
| Vehicle Weight | 1866 kg | 1423 kg |
| Vehicle Length | 4790 mm | 4500 mm |
| Vehicle Width | 1860 mm | 1700 mm |
| Vehicle Height | 1350 mm | 1610 mm |
| Wheelbase Size | 2690 mm | 2450 mm |
