<ul data-eligibleForWebStory="false">Slate Auto's sub-$20,000 electric truck faces price hike after EV tax credit slashed.Congress' move to end the $7,500 EV tax credit impacts Slate's competitiveness.Truck's basic features and accessories may not be as appealing at higher price.Slate may need to reconsider its business model with upcoming market challenges.Despite challenges, Slate's unique offering still has potential in the affordable EV market.