A new lightweight BMW M Concept could appear at the 2011 Tokyo Motor Show according to internet forum rumours. The unique concept would be a study in lightweight engineering with a host of the world’s more expensive metals and composites. The BMW M Concept could have everything from magnesium to titanium, thermoplastic and carbon fibre materials. It will apparently be purely a concept study and only some elements would make it to production as car companies increasingly seek to reduce weight to bring down fuel consumption and CO2 emissions.
Source | Autoblog.com