Lotus F1 Team commenced the first of two days testing at the Circuit de Barcelona-Catalunya with race driver Pastor Maldonado on driving duties. The team enjoyed a full and productive morning, but ran less in the afternoon due to a loss of power requiring a precautionary end to the day’s running in order to replace the fuel system. Pastor completed sixty laps, with a best time of 1min 27.388secs.Fast Facts:Track: Circuit de Barcelona-Catalunya, Spain, 4.7kmChassis: E23-03Weather: Hot and sunny. Ambient 19°C - 30°C Track 26°C - 52°C          Programme: Various aero evaluations and set-up configurationsLaps Completed: 60Classification: P5, 1:27.338Interruptions: Loss of power investigation and precautionary replacement of fuel system.What's Next?Jolyon Palmer will take to the wheel of the E23 Hybrid tomorrow..Pastor Maldonado:“The car was in good shape and we ran through a lot of our programme in the morning. We made strong progress with some positive conclusions about the parts we ran which is encouraging for the future. Track conditions today were better than in the race here two days ago in terms of the wind and level of grip which was beneficial to us. We did do some work for the next race in Monaco so we hope to be fighting strongly there.”Alan Permane, Trackside Operations Director:“We enjoyed a productive morning in very hot conditions and were able to run though a significant number of tests of new parts as well as configurations of parts and different set-ups, all of which has been very promising. Our running in the afternoon was curtailed somewhat as we stopped running early as a precautionary measure to replace the fuel system ahead of tomorrow’s running, but it has still been a positive day.”