I asked about this once some years ago about a Duplicolor product that has a rather realistic chrome-looking cap on the spray can, although it looks like the post isn't here anymore.
The consensus was that nothing looked even close to chrome unless you spent a ton of $$$ on a product that was like $80 a qt (I don't recall the name of it). ANything else was like an aluminumized silver.
If you want the look of chrome, then electroplating is really the only way to do it (real chrome).