Wolff confirms further upgrades for the Spanish Grand Prix

Mercedes team boss Toto Wolff has confirmed that the Anglo-German outfit will introduce further upgrades for its W15 at next weekend's Spanish Grand Prix.

Mercedes have endured a tough start to their season as they have fallen behind the field-leading trio of Red Bull, McLaren and Ferrari. It has been a shock situation for the Anglo-German team as they had hoped to improve their performance with a new car concept, but they were unable to find the optimal operating window for their brand-new W15 at the beginning of the season.

However, the Brackley-based squad started to add upgraded parts to their car in Imola, followed by further upgrades in Monaco and Montreal. The development has clearly helped the team improve their competitiveness, with George Russell's pole position in Montreal confirming that they have brought the car into a much better operating window.

Expanding on his team's recent development push, Wolff added: “I think definitely, since Imola, we've taken the right steps and put parts on the car that are working, something that we were struggling in the past couple of years"

“Now directionally we seem to be adding performance every weekend and we have new stuff coming also, new parts coming in Barcelona that should help us. So I would very much hope that we can continue this positive trajectory.”

Mercedes brought a new front wing to Monaco which has attracted much attention. George Russell received the heavily-upgraded front wing first before Lewis Hamilton's car was also equipped with the upgraded version.

Wolff stressed that the recent improvements were not only down to the upgrades that were visible to the naked eye as the team brought many invisible upgrades as well.

“Sometimes when you bring a highly-visible part like a bodywork or front wing, this is pretty much the talk of what has changed the performance,” Wolff added.

“But the truth is we have, over the last three races, brought so many new parts, visible and invisible for the eye, that have contributed milliseconds to more performance.

“I think this is where those marginal gains then have that positive effect. That was just a huge effort of the factory, so I think the wheel has started to get some real motion on it," Wolff concluded.