There are so many factors that play into that, including the energy mix of the country you live in and so on.

The studies I have seen are a bit suspicious as they seem to employ figures that just so happen to support the idea that buying new cars (EVs in this case) is good. This is not to say that these figures are false, but they fit a bit too well into what the likely funders of these studies want to hear.

The real answer is probably: drive less, and only if you absolutely can not do that, maybe consider getting an EV instead of continuing to use your current ICE car.