My race cars have 100% armor and it doesn't drop your speed, let alone by 5%. I tested with someone who removed the armor from their vehicle, we went to Down The Drain with catchup off and we were hitting the checkpoints simultaneously.
Not to mention, taking the armor off hurts you in races since your car becomes easier for other people to ram off the road and total. If you want to end up backwards with one wheel aiming in the wrong direction after someone hits you in a race, feel free to remove your armor (with no benefit, remember). Considering how prevalent ramming is, I'll keep mine on.
And removing armor also makes your vehicle useless in free roam.
if your vehicle is a motorbike then don't put any on cos you will be dead before your bike blows up
Really makes no sense, stop crashing into sh*t.
Armor has other benefits besides preventing your vehicle from blowing up, like make it continue to function normally before it blows up. And in free roam, it's easy for a bike to blow up well before you're dead (in races it never happens since people usually reset to the last checkpoint).