This is a common mis-conception. This isn't a new idea. There is a "Chrome" M3 in my area that is fairly well known in the tuner world. Also, Remember back the 1996 Atlanta Olympics and the opening ceremony that featured 50 "chromed" Antique Chevy Pickups. The cost involved with disassembling and dipping body parts, then putting it back together again would be completely insane, even for a Oil Baron.
This is actually a "paint" process by Spectra-Chrome
http://www.sprayonchrome.com/index2.html
I believe Dupont or 3M also offers a similar process.
The other issue with actual chrome plating is the thickness of the plating. If you dpped car parts in chrome, they tolerance would be off slightly and make it very difficult to put the car back together and make it fit correctly. Also, you can't Chrome plate a Urethane Bumper Cover like 99.99% of all modern cars have. if you touched the bumper with any pressure or a rock hit it at highway speed, it would flex and pop off.
There was also a thread some time ago about a similar product here on the forum.
https://www.crossfireforum.org/forum...ht=Fantachrome
Here is the Chrome "Painted" M3...
http://www.anvari.org/cols/BMW_M3_wi...ome_Paint.html
I've seen and sat in this car in person. It looks chrome dipped but it's not. This is also now an option for the Bugatti Veyron as well.