[GPM]

For those who have owned BMWs prior to the introduction of computer controlled drive mode sissy1 and sissy2, you'll likely recall there was no option. And back when BMW was really the Ultimate Driving Machine, the default option was certainly not anything called Comfort or Eco whatever.

Going back to the 1500 and 1600 in the mid '60s and later the 2002 and 2002tii in the '70's BMWs fours were designed to drive. The 6 cylinder engine was introduced in the early '30s and continues to this day. It has always been a performance engine.

So, given the development of engine materials and technology, I would venture a guess that driving in Sport or Sport + mode will not do any damage to your engine.

Just my opinion, I could of course, be wrong.