4 Hidden Car Features Only Smart Drivers Know About! Think you know your car inside and out? Think again! Even experienced drivers miss out on the secret features that car manufacturers quietly build in — small details that can save time, money, and even prevent accidents. Here are 4 hidden car tricks that only smart drivers use. First — The fuel indicator arrow on your dashboard. Ever wonder what that tiny triangle next to the fuel pump icon means? It shows which side your fuel tank is on! No m