McLaren have changed their test plan with Jenson Button back in the car on Thursday
Rookie Magnussen to take over the MP4-29 in the afternoon
By Mike Wise. Last Updated: 29/01/14 6:45pm
Button promises great racing
McLaren have revised their test plan at Jerez, with Jenson Button now scheduled to get back in their new car again on Thursday morning.
The team's original intention had been for Button to drive on the opening two days in southern Spain before handing over to his new team-mate Kevin Magnussen.
However, McLaren suffered teething troubles with their MP4-29 on Tuesday, meaning that Button failed to complete a solitary lap. The 34-year-old will now complete his week's work on Thursday morning before rookie Magnussen tries the car for the first time.
Good day today. But as we did no running yesterday, @JensonButton will do tomorrow a.m. & I'll do tomorrow p.m. & all day Friday.- Kevin Magnussen (@KevinMagnussen) January 29, 2014
McLaren and Button enjoyed a far more productive day on Wednesday, finishing top of the timesheets after completing a total of 43 laps.
Speaking to Sky Sports News afterwards, he said: "You always want to do more laps. This is really our first day of testing - yesterday was a no-show really. I think that we're getting a good understanding of things in terms of the car, the way the engine is behaving and the turbo; obviously it's very different to what we're used to.
"There's a lot of work needed but it's all stuff that we can work on now. There's nothing that scares me with the car; there's a lot in terms of set-up that we can do, it just takes time. And in terms of how the engine behaves as well - under braking and traction: all those areas we're going to have to work a lot on.
"But it's exciting, because there's a lot we can play with and a lot we can adjust. The brake system is very complicated, so getting it right is tough and today we've had a few moments where you end up locking up and almost finding the gravel.
"So it's tricky, but it's enjoyable to drive. I have to be honest: it's doesn't sound like anything I've driven before in terms of an F1 car. I love the roar of a V10 and a V8 but this is what we have, and I think as long as we have good racing, the fans will still love it."
Scheduled Jerez Day Three line-up:
Caterham: Robin Frijns.
Ferrari: Fernando Alonso.
Force India: Nico Hulkenberg.
McLaren: Jenson Button/Kevin Magnussen.
Mercedes: Lewis Hamilton.
Red Bull: Daniel Ricciardo.
Sauber: Adrian Sutil.
Toro Rosso: Jean-Eric Vergne.
Williams: Felipe Massa.
The Sky Sports F1 Online team will be providing live commentary of all three winter tests, with live updates from trackside also on Sky Sports News.