3 December 2012 - www.ballz.co.za - Sasha Martinengo is on a social network driven road trip across South Africa in Grace, a classic, 1958 Triumph T3a car. Everything, from what Martinengo listens to, what he packs, what he eats and how he gets there has been placed in the hands of the public. He is fuelled by tweets using " #KeepItGoing & @CaltexSA " 1 tweet = 1 litre of Caltex with Techron