1991 BMW M12 vs. 2006 Opel Astra
To start off, 2006 Opel Astra is newer by 15 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 207 more horse power than 2006 Opel Astra. (89 HP @ 5600 RPM). In normal driving conditions, 1991 BMW M12 should accelerate faster than 2006 Opel Astra.
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, 2006 Opel Astra, 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 325 more torque (in Nm) than 2006 Opel Astra. (125 Nm @ 4000 RPM). This means 1991 BMW M12 will have an easier job in driving up hills or pulling heavy equipment than 2006 Opel Astra. 2006 Opel Astra has automatic transmission and 1991 BMW M12 has manual transmission. 1991 BMW M12 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2006 Opel Astra will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1991 BMW M12 | 2006 Opel Astra | |
| Make | BMW | Opel |
| Model | M12 | Astra |
| Year Released | 1991 | 2006 |
| Body Type | Coupe | Hatchback |
| Engine Position | Middle | Front |
| Engine Size | 4988 cc | 1364 cc |
| Engine Cylinders | 12 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Horse Power | 296 HP | 89 HP |
| Engine RPM | 5200 RPM | 5600 RPM |
| Torque | 450 Nm | 125 Nm |
| Torque RPM | 4100 RPM | 4000 RPM |
| Engine Bore Size | 84 mm | 73.4 mm |
| Engine Stroke Size | 75 mm | 80.6 mm |
| Engine Compression Ratio | 8.8:1 | 10.5:1 |
| Drive Type | Rear | Front |
| Transmission Type | Manual | Automatic |
| Number of Seats | 2 seats | 4 seats |
| Number of Doors | 2 doors | 3 doors |
| Vehicle Length | 4370 mm | 4300 mm |
| Vehicle Width | 2000 mm | 1760 mm |
| Vehicle Height | 1110 mm | 1440 mm |
| Wheelbase Size | 2610 mm | 2620 mm |
