Press Release
Dynamics
- Aluminium space-frame structure combines low mass with a high level of torsional and bending rigidity for improved dynamic and crash performance.
- MacPherson strut front suspension with 3-link De Dion set-up at the rear.
- Long wheelbase promotes high-speed stability
- Turning circle of just 4.5m enhances city car credentials
- ABS with EBD (Electronic Brakeforce Distribution) fitted as standard
Platform
Mitsubishi’s engineers were asked to develop a platform that combined a low mass, with impressive structural rigidity and crash-protection. They responded by developing an all-new aluminium space-frame body structure, which employs a combination of die casting, extrusions and press formings. The side members, cross members, roof rails and bow use extrusions, the frame pillars use dies castings, and the floor pan and roof panels use press formings. They are joined together using a combination of laser welding and self-piercing rivets.
The net result is a structure that weighs 35% less than a traditional steel monocoque while achieving similar levels of bending and torsional strength. This rigidity is of benefit to both vehicle dynamics and occupant protection.
Suspension
The Mitsubishi “i’”s suspension consists of MacPherson struts at the front and a 3-link De Dion set-up at the rear. The rear-mid-engined configuration has enabled the engineers to optimise the front suspension set-up and combine a comfortable ride quality with responsive, nippy handling. The vehicle’s exceptionally long wheelbase and wheel-at-each corner stance also promotes high-speed stability.
The car’s rear-wheel drive set-up is reflected in the tyre choice – 145/65R15 tyres at the front are joined by larger, 175/55R15 tyres are the rear. Grip levels are high and the Mitsubishi’s traction is further enhanced by a 45:55 front/rear weight distribution, which also helps reduce front-end ‘dive’ under braking. The “i” might call the city home, but it’s no less competent on the open road or motorway.
Steering
The rear-mid-engined configuration allows the “i” to offer light, responsive steering without the need for power assistance. This benefits the fuel consumption – there is none of the power-loss associated with traditional hydraulic assistance – and helps reduce the car’s complexity and overall mass.
The front-wheels can offer a wide-angle of movement, reducing the car’s turning circle to just 4.5m. The benefits of this for urban driving are self-evident.
Safety
- High level of active and passive safety
- Aluminium space-frame construction provides multidirectional impact safety
- Twin front airbags
- ISOFIX child seat mounting points and anti-trap electric windows help protect the next generation
- HID headlamps improve nigh-time visibility
- ABS with EBD fitted as standard
Few subjects have dominated the motoring agenda in recent years more than safety. Today’s cars are safer than ever before the “i” has been designed to optimise both occupant and pedestrian safety.
The rear-mid-engined configuration allowed the engineers to develop a large crumple zone in the nose of the car, offering excellent occupant protection in a frontal impact (see picture below). The aluminium space-frame structure also has an important role to play in absorbing the impact energy. Large-section straight side rails extend along the length of the body and absorb and diffuse impact energy in a frontal collision. Strong cross members link these side rails and absorb side impact energy, while the floor and engine act in unison to alleviate the risk of injury in a rear impact.
Twin front airbags are fitted as standard to the “i”, while ISOFIX child seat mounting mounting points and anti-trap electric windows help protect the next generation. Mitsubishi’s own analysis suggests that the “i” should achieve a 4star rating in the Euro NCAP crash tests.
Pedestrians are also well catered for. The absence of an engine in the front reduces the risk of a pedestrian striking a hard point under the bonnet and the “i” features an innovative energy-absorbing wiper pivot to reduce the transmission of impact energy in the event of a pedestrian striking a car. Mitsubishi is confident of achieving a Euro NCAP three star rating for pedestrian safety.
The standard fit ABS with EBD, coupled with secure handling, will help a driver avoid an accident in the first place. EBD (Electronic Brakeforce Distribution) automatically modulates the braking performance between the front and rear wheels to ensure the car stops as quickly and safely as possible. HID (High Intensity Discharge) headlights are also fitted as standard and dramatically improve the driver’s night time visibility, making an important contribution to active safety.
Pricing, equipment and warranty
- Single model priced at £8,999 would be offered
- Comprehensive specification includes automatic air-conditioning (climate control), keyless entry system, alloy wheels, front fog lights, six-speaker stereo, front and rear electric windows, electrically operated and folding door mirrors, HID headlamps
- 3-year Unlimited Mileage Warranty, 3-year Pan European Recovery Service and 6-year Anti-Corrosion Perforation Warranty
If the feasibility study proves successful, Mitsubishi Motors UK will import just one version of the “i” which, in the best Japanese tradition, will come packed with the latest technology. Automatic air conditioning (climate control), a six-speaker stereo with a CD player, front and rear electric windows and electrically operated and folding door mirrors all feature as standard. Its standard specification compares favourably with its main rivals, as the table below illustrates.
Mitsubishi also has a tradition of providing exceptional after-sales support, and the “i” would be no exception. It would be supplied with a 3-year Unlimited Mileage Warranty, a 3-year Pan European Recovery Service and a 6-year Anti-Corrosion Perforation warranty.
