Imola [Italy], Mercedes driver Lewis Hamilton expressed excitement about the upcoming changes for his team and the seven-time champion hopes he will now have a "north star" in his quest for a faster lap time at the Emilia Romagna Grand Prix . , With most of the leading teams introducing some form of car upgrade heading into the Imola weekend, Mercedes will have new parts on the W15 for the second race in a row. The former champion is yet to finish a Grand Prix higher than fifth this season. But Hamilton took heart with his late-race pace at the Miami GP last time out, when he finished on the tail of Red Bull's Sergio Perez, in a weekend where the set-up time was by nature the upgrade brought by that event. Was banned. Sprint weekend “The last race was positive and there is still a long way to go.I'm really excited about the developments to come. We had a step up in the last race and we have a step up this weekend and there's more in the pipeline. I feel like we've got more of a North Star in what we need to do and change. It takes time but the energy in the team is amazing," Hamilton said, as quoted by SK Sports. "They are very resilient in this team.Despite facing defeat many times, they are continuously moving forward. We just have to keep our focus and do our best work each weekend." he added. With the much-improved W15, the much-changed successor to Mercedes' unsuccessful W14, Hamilton claims the company is still in the "discovery process." " and there is a "very short window" during which Mercedes can reliably achieve its peak performance. However, he believes the team is making real progress from its Brackley pace and they are looking forward to racing. Working hard to get more development parts on track before a busy summer “It's just a game of patience and making do with what you have.Making the most of the tools available to you today, tomorrow and this weekend," Hamilton said. But I'm really excited that we're seeing progress at the factory in the wind tunnel."