1981 BMW 518 vs. 2009 Infiniti M
To start off, 2009 Infiniti M is newer by 28 year(s). Which means there will be less support and parts availability for 1981 BMW 518. In addition, the cost of maintenance, including insurance, on 1981 BMW 518 would be higher. At 3,496 cc (6 cylinders), 2009 Infiniti M is equipped with a bigger engine. In terms of performance, 2009 Infiniti M (303 HP @ 6800 RPM) has 213 more horse power than 1981 BMW 518. (90 HP @ 5500 RPM) In normal driving conditions, 2009 Infiniti M should accelerate faster than 1981 BMW 518. With that said, vehicle weight also plays an important factor in acceleration. 2009 Infiniti M weights approximately 579 kg more than 1981 BMW 518. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are rear wheel drive (RWD) - it offers better handling in dry conditions; in addition, if you are looking to drift, both vehicles do the job better than front wheel drive vehicles. 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, 2009 Infiniti M (355 Nm @ 4800 RPM) has 215 more torque (in Nm) than 1981 BMW 518. (140 Nm @ 4000 RPM). This means 2009 Infiniti M will have an easier job in driving up hills or pulling heavy equipment than 1981 BMW 518. 2009 Infiniti M has automatic transmission and 1981 BMW 518 has manual transmission. 1981 BMW 518 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2009 Infiniti M will be easier to drive especially in heavy traffic.
Compare all specifications:
1981 BMW 518 | 2009 Infiniti M | |
Make | BMW | Infiniti |
Model | 518 | M |
Year Released | 1981 | 2009 |
Body Type | Sedan | Sedan |
Engine Position | Front | Front |
Engine Size | 1766 cc | 3496 cc |
Engine Cylinders | 4 cylinders | 6 cylinders |
Engine Type | in-line | V |
Horse Power | 90 HP | 303 HP |
Engine RPM | 5500 RPM | 6800 RPM |
Torque | 140 Nm | 355 Nm |
Torque RPM | 4000 RPM | 4800 RPM |
Engine Bore Size | 89 mm | 95.5 mm |
Engine Stroke Size | 71.1 mm | 81.4 mm |
Engine Compression Ratio | 9.5:1 | 10.6:1 |
Drive Type | Rear | Rear |
Transmission Type | Manual | Automatic |
Number of Seats | 5 seats | 5 seats |
Number of Doors | 4 doors | 4 doors |
Vehicle Weight | 1140 kg | 1719 kg |
Vehicle Length | 4630 mm | 4940 mm |
Vehicle Width | 1710 mm | 1810 mm |
Vehicle Height | 1430 mm | 1520 mm |
Wheelbase Size | 2630 mm | 2910 mm |