Originally Posted by spmd11
His car is jet black
Poorboy's Natty's Blue is always a good choice for Jet Black. Great wax for a very reasonable price. Dodo Juice Blue Velvet or Purple Haze, as well as Dodo Juice Supernatural are all extremely good as well (albeit, a bit more expensive).
As ToadHollow said, you'll really want a sealant for long term protection though. Wax can be placed on top of a sealant for extra protection and depth/gloss/wetness to the paint.
All are available from DetailedImage
'15 i3 REX // Capparis // ZGW // ZTD // HK // 20"
20% Tint, Coding, LED High Beams/Signals, Painted Reflectors, MAX2 Hardwire
Past: F30 335i, E90 328xi