Thumb Score: +21 Amazon has the 481-Pc Lego Speed Champions Mini Cooper S Rally & 2018 MINI John Cooper Works Buggy Building Kit on sale for $34.95. Shipping is free.Note, it usually ships within 6 days. Walmart also has the 481-Pc Lego Speed Champions Mini Cooper S Rally & 2018 MINI John Cooper Works Buggy Building Kit on sale for $34.95.