1981 BMW 745 vs. 2007 Porsche 911
To start off, 2007 Porsche 911 is newer by 26 year(s). Which means there will be less support and parts availability for 1981 BMW 745. In addition, the cost of maintenance, including insurance, on 1981 BMW 745 would be higher. At 3,594 cc (6 cylinders), 2007 Porsche 911 is equipped with a bigger engine. In terms of performance, 2007 Porsche 911 (321 HP @ 6800 RPM) has 69 more horse power than 1981 BMW 745. (252 HP @ 5200 RPM) In normal driving conditions, 2007 Porsche 911 should accelerate faster than 1981 BMW 745. With that said, vehicle weight also plays an important factor in acceleration. 1981 BMW 745 weights approximately 146 kg more than 2007 Porsche 911.
Because 2007 Porsche 911 is four wheel drive (4WD), it will have significant more traction and grip than 1981 BMW 745. In wet, icy, snow, or gravel driving conditions, 2007 Porsche 911 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, 1981 BMW 745 (380 Nm @ 2200 RPM) has 10 more torque (in Nm) than 2007 Porsche 911. (370 Nm @ 4250 RPM). This means 1981 BMW 745 will have an easier job in driving up hills or pulling heavy equipment than 2007 Porsche 911. 1981 BMW 745 has automatic transmission and 2007 Porsche 911 has manual transmission. 2007 Porsche 911 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 1981 BMW 745 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1981 BMW 745 | 2007 Porsche 911 | |
| Make | BMW | Porsche |
| Model | 745 | 911 |
| Year Released | 1981 | 2007 |
| Body Type | Sedan | Coupe |
| Engine Position | Front | Rear |
| Engine Size | 3430 cc | 3594 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | boxer |
| Horse Power | 252 HP | 321 HP |
| Engine RPM | 5200 RPM | 6800 RPM |
| Torque | 380 Nm | 370 Nm |
| Torque RPM | 2200 RPM | 4250 RPM |
| Engine Bore Size | 92 mm | 96 mm |
| Engine Stroke Size | 86 mm | 82.8 mm |
| Engine Compression Ratio | 8.0:1 | 11.3:1 |
| Top Speed | 227 km/hour | 280 km/hour |
| Drive Type | Rear | 4WD |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1596 kg | 1450 kg |
| Vehicle Length | 4870 mm | 4430 mm |
| Vehicle Width | 1810 mm | 1860 mm |
| Vehicle Height | 1440 mm | 1320 mm |
| Wheelbase Size | 2770 mm | 2360 mm |
| Fuel Tank Capacity | 100 L | 67 L |
