Roll resistance on EP3

Hello, I have noticed now that my EP3 almost doesn’t roll at all with a slight drop or just a little bit! The following example: If I went backwards with my old EP4 from the next descent in the underground garage to my parking space, the one before has always rolled almost equally against the wall when starting without a hand brake, at the R I can walk quite comfortably from the brake and it doesn’t roll half as fast away. (The EP4 also had a 205 tire) The other for example at the traffic light or in the traffic jam, when vehicles in front of me go off the brake (right before I’m talking about a switchcar and no automatic which is “less” when you go off the brake:-) roll the lightly…and mine is bomb-proof without any brake. Before I’ve just rolled to a traffic light it went quite slightly downhill, I’m still guessed 2-4 km/h and despite likes the car was standing after a few seconds, my EP4 and every other car could have been solved? Thank you for that?