Red Bull boss Christian Horner remains confident that Renault will be able to address the issues that have afflicted the RB10 this week.
Sebastian Vettel has logged only 11 laps after the car suffered problems with its energy store, one of the key elements of the energy recovery system.
“I think this test was always designed to be a systems check,” Horner told this writer. “It’s obvious that Renault have had a few issues down here that they’re working hard to get on top of. I’m sure that with more dyno time, and bit more track time, they should be fine.
“Of course any track time is valuable, we’ve just got to make sure we recover it in the remaining test days.”
The car emerged late yesterday after the team had a problem of its own, before the Renault issues struck.
“It was internal within the gearbox, and it was an issue that cost us a bit of track time, but our track time was curtailed at the end of the day anyway.”
Adam Cooper F1 
Christian very deliberately said ‘renault have issues’ not ‘we (the partnership) have issues’, but I wonder how much influence Red Bull had with Renault at the design stage demanding the tight packaging that Adrian Newey will want in order to give him maximum freedom with his car design.
A good point. I’ve wondered for a while if Newey would be a little too aggressive with cooling etc in the name of aero benefits.
It is an absolute marvel that these F1 manufacturers can deliver any kind of a working car, let alone a good one, at Jerez when you step back and consider the technological challenge of getting a new design to work out of the box with no prior real testing (track time).