Do all the cars in NFS Most Wanted become the same after upgrading them to their max?
Do all the cars have the same abilities if they are upgraded to the max of their attributes in NFS Most wanted?
No, they don't even after max upgradation and junkman parts, the Carrera GT could reach 380 KmPH. But the lowest cars have difficulty reaching 330 KmPH and the slightest steering causes a greater reduction in speed, at higher speeds.
PS: I used cheats to upgrade the cars (but didn't play online).