2003 Ariel Atom vs. 2007 BMW Z4
To start off, 2007 BMW Z4 is newer by 4 year(s). Which means there will be less support and parts availability for 2003 Ariel Atom. In addition, the cost of maintenance, including insurance, on 2003 Ariel Atom would be higher. At 3,199 cc (6 cylinders), 2007 BMW Z4 is equipped with a bigger engine. In terms of performance, 2007 BMW Z4 (358 HP @ 7900 RPM) has 249 more horse power than 2003 Ariel Atom. (109 HP @ 5000 RPM) In normal driving conditions, 2007 BMW Z4 should accelerate faster than 2003 Ariel Atom.
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, 2007 BMW Z4 (385 Nm @ 4900 RPM) has 237 more torque (in Nm) than 2003 Ariel Atom. (148 Nm @ 3000 RPM). This means 2007 BMW Z4 will have an easier job in driving up hills or pulling heavy equipment than 2003 Ariel Atom.
Compare all specifications:
| 2003 Ariel Atom | 2007 BMW Z4 | |
| Make | Ariel | BMW |
| Model | Atom | Z4 |
| Year Released | 2003 | 2007 |
| Body Type | Roadster | Convertible |
| Engine Position | Rear | Front |
| Engine Size | 1589 cc | 3199 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 109 HP | 358 HP |
| Engine RPM | 5000 RPM | 7900 RPM |
| Torque | 148 Nm | 385 Nm |
| Torque RPM | 3000 RPM | 4900 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 1 seats | 2 seats |
| Vehicle Length | 3420 mm | 4100 mm |
| Vehicle Width | 1800 mm | 1790 mm |
| Vehicle Height | 1200 mm | 1300 mm |
| Wheelbase Size | 2350 mm | 2500 mm |
