Sears offers the Thule Luggage Loft 15XT Car Top Carrier, model no. 858, for $89.99. Coupon code "SEARS5OFF50" cuts it to $84.99. With free shipping, that's $15 under our mention from last summer and the lowest total price we've seen. It measures 41" x 34" x 18" and comes with attachment straps.
Of note, Shop Your Way Rewards members will earn a Sears credit with this purchase and may be eligible for additional credits and discounts.