Huge thanks to our series sponsor BOTB! Chance to win £150 free credit just by signing up and entering your Car Throttle name in the Surprise Details in your account! http://bit.ly/Enter-The-BOTB-Competition Winner will be drawn on Friday 22nd July. To find out how many horses have leaked out of the M3's engine, Alex takes his lemon back to Surrey Rolling Road for dyno testing. After that, it's ti
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