Groupon offers this Set of Faux-Leather Seat Covers in four colors for $39.99 with free shipping. Aside from the mention below, that's the lowest total price we could find by $10. It includes two front bucket seat covers, four headrest covers, and a rear bench cover and backrest cover. Deal ends February 4 at 1 am ET.
A close price: Overstock sells this set for $39.95 plus $2.95 for shipping.