Twingo 3 Bauj. 2019 locks off at 140km/h!?

Hello, with our new Twingo Chick (71 hp and 151 km/h maximum speed) the top speed is over at 140 km/h. Usually my wife drives the car in the city, but this week I used it to work on the highway and I noticed that it accelerates relatively quickly up to 130/140 km/h, but at 140 km/h, although you can still get through the accelerator, it’s over. It feels like the car no longer has any gas. or you have set the cruise control to 140km/h. Even if you drive downhill, it doesn’t get faster and actually keeps the 140km/h constant. The car has now about 3500km down and has been driven from Krefeld to Munich and back, so that I assume that it has thus entered!? Has someone already had the same experiences, or does someone know if this can be normal, because my last cars were own according to Tachoanzeige. ch always faster than the indication in the vehicle license. Greetings