I have two MSM cars, a 2018 M3 and a 2020 MY. The color looks great when it is freshly washed. After 5 to 7 days it will start looking more like dirt than MSM. Wash it again and it looks new. That’s my experience, anyway. I use ONR Wash & Wax. I have not had the cars detailed nor have I done any extra waxing myself and I think that paint still looks factory new immediately after washing. My only complaint about the color is that it does not stay clean. Maybe if I actually took the time to properly wax the cars they would maintain their clean appearance longer.