No, not even about 'top speed', standard E55 will get you a ban able drive without any great effort at all, if the cars modded, without doubt people will go for it just to pump out their chests with their 'big BHP' car, until humbled by another high performance car, with an insane driver at some point no doubt, at which point, do you then reflect having chased that guy down, to how stupid that was, and the potential repercussions of such actions, do your mods if it is a thing to do, but take it to the track. My own E55 is heavily modified, rarely driven it on the road these days, but it does go to the track now and then, to take in the awesome power of the old girl, and have some fun, more so with a few of the guys here that still go out to play, and enjoy the company for the day.
I furthere come back to my previous comment, if your not track or Vmaxing, it's absolutely a waste of a good car, and the out going modding monies, to which such expenditure will not be seen back. I also raised the insurance increased to such modding, thats not great fun sucking that up either, so all in all, let alone keeping your license, but what ever is done, modded or standard, just make sure you have some fun with the car, as to surely, thats what it is all done for, and hopefully justifies the expense keeping these ageing cars on the road.
All, the best with your car.