I got trolled by the game lol!
Ok so after putting in my code for my red pre order challanger, I showed my buddy where the "secret" orange challanger vendor was. Then I noticed that the orange one read that it had sleightly higher speed and boost speed than my red one! I saved up and bought that one. Later one, I was still unable to achieve 28m/s on a runner. Found the vehicle vendor that sells the hannibal 800 quads. They, also read higher speed than my starting quad and arkfall code reward quad. After purchasing my new shiney quad I was still unable to hit the speed for the challenge.... Then I checked my vehicle inventory. My new quad was no different than my other one. Also my orange charger was no faster than my red one even though the vendor said it was. Anyone else notice this? Oh and 10 mins after purchasing that 10.5k quad I got one for free from a mission.... haha