Two products I will suggest, 50 Cal Cover up and GTechniq C2 V3 sealant. Brilliant combo on black cars and one of the best I've used.
20150421_192132 by Tom White, on Flickr
20150421_194937 by Tom White, on Flickr
Even by hand you'll get a shine like this -
20150421_201828 by Tom White, on...