2003 Alfa Romeo Spider vs. 2003 Infiniti M
To start off, both 2003 Alfa Romeo Spider and 2003 Infiniti M were released in the same year (2003). Therefore the support and the availability on parts for both vehicles should be relatively similar. At 4,494 cc (8 cylinders), 2003 Infiniti M is equipped with a bigger engine. In terms of performance, 2003 Infiniti M (340 HP @ 6400 RPM) has 192 more horse power than 2003 Alfa Romeo Spider. (148 HP @ 6300 RPM) In normal driving conditions, 2003 Infiniti M should accelerate faster than 2003 Alfa Romeo Spider. With that said, vehicle weight also plays an important factor in acceleration. 2003 Infiniti M weights approximately 317 kg more than 2003 Alfa Romeo Spider. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2003 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 2003 Infiniti M. However, in wet, icy, snow, or gravel driving conditions, 2003 Alfa Romeo Spider, 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, 2003 Infiniti M (451 Nm @ 4000 RPM) has 270 more torque (in Nm) than 2003 Alfa Romeo Spider. (181 Nm @ 3800 RPM). This means 2003 Infiniti M will have an easier job in driving up hills or pulling heavy equipment than 2003 Alfa Romeo Spider. 2003 Infiniti M has automatic transmission and 2003 Alfa Romeo Spider has manual transmission. 2003 Alfa Romeo Spider will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2003 Infiniti M will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2003 Alfa Romeo Spider | 2003 Infiniti M | |
| Make | Alfa Romeo | Infiniti |
| Model | Spider | M |
| Year Released | 2003 | 2003 |
| Body Type | Roadster | Sedan |
| Engine Position | Front | Front |
| Engine Size | 1908 cc | 4494 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 148 HP | 340 HP |
| Engine RPM | 6300 RPM | 6400 RPM |
| Torque | 181 Nm | 451 Nm |
| Torque RPM | 3800 RPM | 4000 RPM |
| Engine Bore Size | 83 mm | 93 mm |
| Engine Stroke Size | 91 mm | 82.7 mm |
| Engine Compression Ratio | 18.5:1 | 10.5:1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Front | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1430 kg | 1747 kg |
| Vehicle Length | 4180 mm | 5020 mm |
| Vehicle Width | 1790 mm | 1780 mm |
| Vehicle Height | 1320 mm | 1470 mm |
| Wheelbase Size | 2600 mm | 2810 mm |
| Fuel Tank Capacity | 69 L | 79 L |
