No. For the most part, the armoring process takes place within the vehicle. The process includes armoring the doors, walls, roof, floor, glass and more. These altercations slightly change the interior, but the exterior look of the vehicle remains the same. Some armored vehicles such as tanks, police cars and money transporting trucks are designed to stand out, but civilian armored vehicles are designed to be discrete. This allows the vehicles to blend in with others on the road while providing the best protection. You can take a look here to see examples of armored car exteriors.