2005 Ariel Atom vs. 2003 Vauxhall Signum
To start off, 2005 Ariel Atom is newer by 2 year(s). Which means there will be less support and parts availability for 2003 Vauxhall Signum. In addition, the cost of maintenance, including insurance, on 2003 Vauxhall Signum would be higher. At 1,796 cc (4 cylinders), 2003 Vauxhall Signum is equipped with a bigger engine. In terms of performance, 2003 Vauxhall Signum (120 HP @ 6000 RPM) has 11 more horse power than 2005 Ariel Atom. (109 HP @ 5000 RPM) In normal driving conditions, 2003 Vauxhall Signum should accelerate faster than 2005 Ariel Atom. With that said, vehicle weight also plays an important factor in acceleration. 2003 Vauxhall Signum weights approximately 935 kg more than 2005 Ariel Atom. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2005 Ariel Atom 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 Ariel Atom. However, in wet, icy, snow, or gravel driving conditions, 2003 Vauxhall Signum, 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 Vauxhall Signum (167 Nm @ 3800 RPM) has 18 more torque (in Nm) than 2005 Ariel Atom. (149 Nm @ 3000 RPM). This means 2003 Vauxhall Signum will have an easier job in driving up hills or pulling heavy equipment than 2005 Ariel Atom.
Compare all specifications:
| 2005 Ariel Atom | 2003 Vauxhall Signum | |
| Make | Ariel | Vauxhall |
| Model | Atom | Signum |
| Year Released | 2005 | 2003 |
| Body Type | Roadster | Hatchback |
| Engine Position | Rear | Front |
| Engine Size | 1589 cc | 1796 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 109 HP | 120 HP |
| Engine RPM | 5000 RPM | 6000 RPM |
| Torque | 149 Nm | 167 Nm |
| Torque RPM | 3000 RPM | 3800 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Front |
| Number of Seats | 2 seats | 5 seats |
| Vehicle Weight | 460 kg | 1395 kg |
| Vehicle Length | 3420 mm | 4640 mm |
| Vehicle Width | 1800 mm | 1800 mm |
| Vehicle Height | 1200 mm | 1470 mm |
| Wheelbase Size | 2350 mm | 2840 mm |
