New 208 features substantial improvements in efficiency over its predecessor the 207.

Following last week's teaser video, Peugeot has unveiled the new B-segment 208 model, the successor to the 207.

The Peugeot 208 has been made lighter and more efficient than its predecessor - with the curb weight of the entry-level variant coming in as low as 975 kg (2145 lbs). It's also more aerodynamic with a Cd quotient of 0.29. Leg-room for rear passengers has been improved by 5 cm (2 inches) and trunk space is larger.

CO2 emissions will be 34 g/km on average less than on the 207. Peugeot will also be applying its e-HDi technology, with a stop/start system, on nearly all diesel variants. The 208 will also be introducing a new range of three-cylinder petrol engines - a 1.0 liter VTi and a 1.2 liter VTi.

The 3 and 5-door Peugeot 208 goes on sale in Europe in the spring of 2012 with the U.K. launch following in the summer.

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All New Peugeot 208 revealed [video]