Spied: 2013 BMW 1-Series M

These spy pictures show the most potent version of the new BMW 1-series, which is set to launch alongside the new three-door model later this year.A BMW M insider at confirmed to Autocar that the new model was likely to wear the M135i badge and would be part of the firm’s upcoming M Performance Automobiles line-up.According to the insider the M135i model, pictured here in testing for the