Vehicle health is too spread out between different cars and also too high on the "meta" ones, Espacio, Pioneer and Vegas should definitely have less. It isn't nearly as easy to do "car gameplay" in a Jericho for example.
Also the fact that high burn fuel eliminates the explosion (instead of just mitigating it/halving its radius as it should IMO) contributes as it basically eliminates the inherent risk of staying for too long in one's car.
I believe if vehicle health was normalized and reduced to a maximum of say 1250 for the tankiest cars, and high burn fuel reworked as stated above, there would be less complaints about this topic.
Additionally, "car gameplay" is not the only problem caused by too sturdy vehicles, car spawners and radar towers just take too much investment of time, ammunition and/or grenades to be destroyed.
Agree on both counts, it is very bad for player retention and gives a cheesy/boring impression of APB's gameplay. This being mostly to new players who happen to watch streams at a level where this tactic is pretty much necessary.