This BMW Z4 received a buff and polish followed by a treatment with F11 Top Coat . F11 Top Coat claims to be a next generation polisher and sealer that can take the place of wax. Its great becuase you can use it on pretty much any surface (interior or exterior), and its very easy to put on; which saves you time when shining and protecting your ride. But for the price of about $60.00/16oz, some people are better off getting a a regular wax/sealant. This Z4 did shine up nicely though!