BMW is to introduce a starter-alternator stop-start system as pioneered by PSA with Valeo technology in Citroën C3 and C2 models. Various four- and six-cylinder 1-series, 3-series and 5-series models will use a Bosch-developed system, which promises fuel savings of around five%. It will be the first time an premium brand car manufacturer has offered such a device, and will help BMW reduce... more...