1981 Alfa Romeo Alfasud vs. 2005 Infiniti M
To start off, 2005 Infiniti M is newer by 24 year(s). Which means there will be less support and parts availability for 1981 Alfa Romeo Alfasud. In addition, the cost of maintenance, including insurance, on 1981 Alfa Romeo Alfasud would be higher. At 4,494 cc (8 cylinders), 2005 Infiniti M is equipped with a bigger engine. In terms of performance, 2005 Infiniti M (335 HP @ 6400 RPM) has 229 more horse power than 1981 Alfa Romeo Alfasud. (106 HP @ 6000 RPM) In normal driving conditions, 2005 Infiniti M should accelerate faster than 1981 Alfa Romeo Alfasud. With that said, vehicle weight also plays an important factor in acceleration. 2005 Infiniti M weights approximately 810 kg more than 1981 Alfa Romeo Alfasud. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2005 Infiniti M 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 2005 Infiniti M. However, in wet, icy, snow, or gravel driving conditions, 1981 Alfa Romeo Alfasud, 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, 2005 Infiniti M (453 Nm @ 4000 RPM) has 320 more torque (in Nm) than 1981 Alfa Romeo Alfasud. (133 Nm @ 4000 RPM). This means 2005 Infiniti M will have an easier job in driving up hills or pulling heavy equipment than 1981 Alfa Romeo Alfasud. 2005 Infiniti M has automatic transmission and 1981 Alfa Romeo Alfasud has manual transmission. 1981 Alfa Romeo Alfasud will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2005 Infiniti M will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1981 Alfa Romeo Alfasud | 2005 Infiniti M | |
| Make | Alfa Romeo | Infiniti |
| Model | Alfasud | M |
| Year Released | 1981 | 2005 |
| Engine Position | Front | Front |
| Engine Size | 1490 cc | 4494 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 106 HP | 335 HP |
| Engine RPM | 6000 RPM | 6400 RPM |
| Torque | 133 Nm | 453 Nm |
| Torque RPM | 4000 RPM | 4000 RPM |
| Engine Bore Size | 84.1 mm | 93 mm |
| Engine Stroke Size | 67.2 mm | 82.7 mm |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Front | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 930 kg | 1740 kg |
| Vehicle Length | 4030 mm | 5020 mm |
| Vehicle Width | 1630 mm | 1780 mm |
| Vehicle Height | 1310 mm | 1470 mm |
| Wheelbase Size | 2470 mm | 2810 mm |
| Fuel Tank Capacity | 50 L | 79 L |
