Romain Grosjean will take over Kimi Raikkonen's testing duties in Mugello this week after bad weather limited running on Tuesday.

13822 - Lotus chooses not to run Raikkonen at Mugello

The original plan was for Raikkonen to drive on Wednesday and Grosjean to drive on Thursday, but after test driver Jerome d'Ambrosio completed just 40 laps on Tuesday, the team decided to give both days to Grosjean in order to make the most of the limited remaining track time.

"The mixed conditions, running intermediates to start and then switching to the medium compound slicks, gave us a good base line for Romain over the next two days," chief of trackside operations Alan Permane said. "We've opted for one driver for the next two days so we can make better use of the time after losing this afternoon's running."

The Lotus did not run at all during the worst of the weather on Tuesday afternoon and technical director James Allison said the team is now facing a busy couple of days.

"We had a busy programme lined up for Jerome including a fair amount of aerodynamic work, sensor measurement work and of course preparing foundations for Romain over the next two days," Allison said. "We've been able to do some of that work in the limited dry running that was available, but there is now a lot more we need to fit in to Wednesday and Thursday. The important thing is we now have base line to build on, so the next two days should be much more productive."