2005 Alfa Romeo 156 vs. 2001 Ariel Atom
To start off, 2005 Alfa Romeo 156 is newer by 4 year(s). Which means there will be less support and parts availability for 2001 Ariel Atom. In addition, the cost of maintenance, including insurance, on 2001 Ariel Atom would be higher. At 1,910 cc (4 cylinders), 2005 Alfa Romeo 156 is equipped with a bigger engine. In terms of performance, 2005 Alfa Romeo 156 (148 HP @ 4000 RPM) has 39 more horse power than 2001 Ariel Atom. (109 HP @ 5000 RPM). In normal driving conditions, 2005 Alfa Romeo 156 should accelerate faster than 2001 Ariel Atom. With that said, vehicle weight also plays an important factor in acceleration. 2005 Alfa Romeo 156 weights approximately 1125 kg more than 2001 Ariel Atom. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2005 Alfa Romeo 156 is four wheel drive (4WD), it will have significant more traction and grip than 2001 Ariel Atom. In wet, icy, snow, or gravel driving conditions, 2005 Alfa Romeo 156 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, 2005 Alfa Romeo 156 (310 Nm @ 2000 RPM) has 162 more torque (in Nm) than 2001 Ariel Atom. (148 Nm @ 3000 RPM). This means 2005 Alfa Romeo 156 will have an easier job in driving up hills or pulling heavy equipment than 2001 Ariel Atom.
Compare all specifications:
| 2005 Alfa Romeo 156 | 2001 Ariel Atom | |
| Make | Alfa Romeo | Ariel |
| Model | 156 | Atom |
| Year Released | 2005 | 2001 |
| Body Type | Station Wagon | Roadster |
| Engine Position | Front | Rear |
| Engine Size | 1910 cc | 1589 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 148 HP | 109 HP |
| Engine RPM | 4000 RPM | 5000 RPM |
| Torque | 310 Nm | 148 Nm |
| Torque RPM | 2000 RPM | 3000 RPM |
| Engine Compression Ratio | 18.5:1 | 10.5:1 |
| Fuel Type | Diesel | Gasoline |
| Top Speed | 200 km/hour | 180 km/hour |
| Drive Type | 4WD | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 1 seats |
| Vehicle Weight | 1585 kg | 460 kg |
| Vehicle Width | 1750 mm | 1800 mm |
| Vehicle Height | 1460 mm | 1200 mm |
| Wheelbase Size | 2600 mm | 2350 mm |
