Did 0-60 times change in the update?

Hi
I only recently updated from the release with the green stats box to the red one. In that one I had a 1966kg car with 536hp with a 0-60 time in 3.5s
Since updating, I’m trying to recreate some of the cars. I now have a car under 1900kg, with the same engine but the 0-60 time is 4.0s. Did the calculation for 0-60 change? I just don’t want to waste time trying to achieve something that can no longer be achieved!

The calculation itself probably did not change, but I think the tyre model parameters, i.e. the grip level. I know that it changed at some point, but I don’t know between which game builds anymore.