Force India chief race engineer Jakob Andreasen was full of praise for Adrian Sutil after the German made his F1 return in Barcelona on Thursday.

Sutil was appearing on track for the first time in almost 18 months on the penultimate day of running as he battles to try and secure the final place on the grid for the 2013 season - with it now appearing to be a head-to-head fight with test driver Jules Bianchi to fill the only vacancy now left.

The 30-year-old was eighth fastest as he quickly got up to speed at the wheel of the VJM06 and Andreasen said he was impressed at how the German had performed.

"It has been a long time since Adrian last worked with the team, but he did an excellent job of getting used to the car and was on the pace straight away," he said. "His feedback was good and it was interesting to hear the thoughts of a driver who has not been in a Formula One car for a while. He was very detailed with his comments and provided some good direction for us.

"The programme was similar to the previous couple of days with aero work, long runs and performance work using the hard, medium and soft tyres. For Friday the weather forecast is looking uncertain, but we will design our technical programme to be ready for every eventuality."