Whenever a driver has a shooter with them, it is difficult for the average player to outrun them, 500 extra hp will only prolong the process in most cases I think. As a solo player, I rather take my chance with 1500 because this way I might stand a chance disabling enemy vehicle carrying more than one person.
If possible, make vehicles slower if they carry more than one person, if this is already a thing, then I think it should be nerfed even more. If this cannot be nerfed anymore without making it annoying, then make drive-by range be shorter (i.e M4 and Ak47 db range be like the Mp5 or really close to it).