<ul data-eligibleForWebStory="false">Slate Auto, an EV startup backed by Bezos, shocks with cheap electric truck.Operating in secrecy for 3 years, Slate develops a customizable, low-cost pickup.Prototype spotted in CA, slate aims for late 2026 production with potential hurdles.As reservations cross 100,000, Slate adjusts pricing strategy post federal EV tax credit changes.Former printing plant in Indiana eyed as manufacturing location for the EV truck.