$4 gas recharges interest in electric vehicles "GM had halted Volt production for five weeks because of sluggish sales after a federal investigation into fires in the car’s battery, which resulted in the vehicle getting a clean bill of health.
Rising sales last month spurred GM to restart Volt production one week earlier than planned. GM sold 2,289 Volts in March, a record monthly total for the car. The previous high was 1,529 deliveries in December."
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