Not to dissuade you but just keep in mind: of the luxury brands MB is one of the few that includes absolutely no maintenance (on your own a finance manager is going to push you into buying prepaid maintenance), and MB leases are not transferable.
Also not to dissuade you from getting an EV, but in 3y/45k miles (a lease term I am familiar with and completed a couple times in the past) you almost certainly will need to put a set of tires on it.
I’d try to avoid manufacturers with a 3y/36m warranty if you plan to drive this to disposition and look for ones with 4y/48m that also include some maintenance: Volvo and BMW come to mind but I’m sure there are others.
All things a good broker can help steer you in the right direction. Don’t worry about @Bumboola keep doing your research and asking questions, you’re on the right track.