Mitsubishi's latest solution to the quest to squeeze more space into minimal dimensions is apparent in the design of the "i." Its 999cc three-cylinder engine is transversely mounted and slanted downwards under the luggage compartment, while the radiator remains in the nose for cooling, making it possible to lower and taper the roofline at the front and rear of the cabin without sacrificing occupant space, and results in a slippery Cd of 0.24. Combine this with its stop/start idling feature and a CVT transmission, and the "i" realizes fuel consumption of 62 miles per gallon and five-star emissions ratings. Inside transparent plastics and small roof skylights give the cabin an airy feeling, while a "festival of light" design makes the high-tech dashboard appear to hover within its housing. A portable Information Key utilizes Bluetooth technology and a memory stick to function as a vehicle lock/unlock key, as well as to transfer computer or audio/visual data between the car and office or home computers, without the bulk of larger PC systems.