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With much of our discussions focusing on hybrid powertrains and the electric cars of tomorrow, we occasionally overlook some of the simpler, efficiency-boosting technologies available today. A prime example of this is the second-generation micro-hybrid stop-start technology from Valeo called i-StARS. Set to debut later this year, the system will initially be featured on diesel-powered Peugeot and Citroen vehicles. A lot of them. Valeo hopes that its i-StARS micro-hybrid technology reaches one mi

Citroën announced yesterday that it was introducing two new diesel engines into its C8 people carrier vehicles. The C8 MPVs are already often powered by diesel engines, so this isn't exactly groundbreaking news, but it is good to hear that these new powerplants will be Euro IV compliant (they will emit less than 190g of CO2 per kilometer) and capable of running on up to 30 percent biodiesel. Citroën says the "range-topping 136hp 2.0HDi 16V unit returns 40 mpg on the combined cycle, CO2