McLaren: The MP4-29 was predominantly affected by electrical issues 28 January, 2014 McLaren trucks at Jerez but no race car Today was a challenging start to the MP4-29’s test and development programme. Along with other teams, we faced difficulties readying our new car for the first winter test of 2014. Despite firing up successfully at the MTC last week, the car was predominantly affected by electrical issues during the day. The subsequent dismantling, inspection and re-installation of several major components ultimately meant that we were unable to conduct any running today. We’re re-installing key systems on the car overnight, with the expectation that Jenson will begin the car’s installation programme tomorrow. (McLaren) Subbed by AJN.