Walmart.com has 78-Piece LEGO City Speed Record Car Building Kit (60178) on sale for $5.99. Select free in-store pickup to save on shipping, otherwise, free 2-day shipping on orders $35 or more. Thanks slicked007
Note, availability for in-store pickup may vary depending on location.
The following has increased in price
Alternatively, Amazon.com also has Add-On Item: 78-Piece LEGO City Speed Record Car Building Kit on sale for $5.99. Shipping is free w/ any qualifying orders over $25 [Details].
Note, this is an add-on item and must be ship/sold by Amazon
It is $7.39 at Target[target.com], free shipping and can be used as filler for the $10 gift card on 50 purchase. Target may eventually match the price, as it did with this one, it may just take a few days.