Full times from day two of the Barcelona group test HERE

Jolyon Palmer has ended the second and final day of F1 testing around the Circuit de Catalunya atop the timesheets after a last gasp super-soft tyre run.

Following on from his three FP1 runs in China, Bahrain and Spain, Palmer returned to the cockpit to continue work on developing the E23 around the Spanish venue, completing more than 80 laps in the car.

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As a reward for his efforts, Lotus was the only team to bolt on a new set of super-soft Pirelli tyres in the closing stages, the defending GP2 Series champion duly taking full advantage as he punched in a 1min 26.080secs lap in the final half-hour of the session. He looked on course to go even faster in the closing stages, only to come across the slower McLaren in the final sector.

Regardless, his time was enough to unseat Pascal Wehrlein from first position, the Mercedes test driver having been perched at the head of the timesheets for almost the entire day despite battling the remnants of an energy-sapping illness. Despite this, the DTM driver still put in the most work of anyone, completing 138 laps.

Despite failing to set a time in the morning and stopping briefly in the afternoon, Pierre Gasly progressed up the order in the afternoon having swapped yesterday's Toro Rosso for the Red Bull today, getting a further 75 laps under his belt.

The Frenchman was six-tenths down on the top spot, having clocked 1m 26.683s, but pushed ahead of McLaren's Jenson Button, the Englishman returning to action just days after declaring the MP4-30 as 'scary to drive' during the Spanish Grand Prix. Completing almost 100 laps, the former champion - who clocked 1m 26.927s - nonetheless pronounced himself as much happier with the car following the two days, saying it had made good progress in that time.

Getting his first taste of Williams machinery since signing as its development driver, Alex Lynn completed 52 laps and finished more than an hour early as he shifted through the team's workload. The GP2 racewinner finished ahead of GP3 equivalent Esteban Ocon, who steadily chipped away at his times in his first test for Force India before settling at 1m 27.520s.

In his first outing in an F1 car since his last race for Sauber at the end of the 2014 season, Esteban Gutierrez put in the miles for Ferrari by completing 116 laps, while Carlos Sainz shrugged off a brief stop in the afternoon to put a substantial 125 laps on the Toro Rosso.

The only driver to bring out the red flags over the two days because of a crash, Raffaele Marciello - in the Sauber today after spending Tuesday with Ferrari - hit the barriers at turn three early on in the day, but recovered to complete 75 laps in total.