1981 BMW 745 vs. 2008 Infiniti M
To start off, 2008 Infiniti M is newer by 27 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 4,493 cc (8 cylinders), 2008 Infiniti M is equipped with a bigger engine. In terms of performance, 2008 Infiniti M (325 HP @ 6400 RPM) has 73 more horse power than 1981 BMW 745. (252 HP @ 5200 RPM) In normal driving conditions, 2008 Infiniti M should accelerate faster than 1981 BMW 745. With that said, vehicle weight also plays an important factor in acceleration. 2008 Infiniti M weights approximately 241 kg more than 1981 BMW 745. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2008 Infiniti M 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, 2008 Infiniti M 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, 2008 Infiniti M (456 Nm @ 4000 RPM) has 76 more torque (in Nm) than 1981 BMW 745. (380 Nm @ 2200 RPM). This means 2008 Infiniti M will have an easier job in driving up hills or pulling heavy equipment than 1981 BMW 745.
Compare all specifications:
| 1981 BMW 745 | 2008 Infiniti M | |
| Make | BMW | Infiniti |
| Model | 745 | M |
| Year Released | 1981 | 2008 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 3430 cc | 4493 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Horse Power | 252 HP | 325 HP |
| Engine RPM | 5200 RPM | 6400 RPM |
| Torque | 380 Nm | 456 Nm |
| Torque RPM | 2200 RPM | 4000 RPM |
| Drive Type | Rear | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1596 kg | 1837 kg |
| Vehicle Length | 4870 mm | 4900 mm |
| Vehicle Width | 1810 mm | 1800 mm |
| Vehicle Height | 1440 mm | 1520 mm |
| Wheelbase Size | 2770 mm | 2910 mm |
| Fuel Tank Capacity | 100 L | 76 L |
