Our earlier F1 2012 and F1 2013 sessions return for a direct head-to-head at the Brazilian Grand Prix. br br The F1 2012 sound levels are as recorded. The F1 2013 audio has been slightly boosted to raise the level as much as possible without introducing artefacts. br br In order of championship seasons, the cars are McLaren's MP4-27 and MP4-28 respectively. br br br br Twitter @ ORDNews br Facebook @ OnlineRaceDriver br Google+ @ +onlineracedriver br br Music: Fire Within by Jens Kiilstofte br br Licensed under Creative Commons Attribution 4.