Ahem, I believe you mean "de-chrome"...
No, the manufacturer will sell you a nice RF blocking pouch to put the key in with their logo on the front for £75. Or you can buy a generic one for £6 off Amazon.
Or just put the key in an old metal tin.
When keyless go was first introduced on the Mondeo, Top Gear magazine tested one and found that the car could be started and driven away with the key on the inside window sill of the reporters house...
Keyless cars are the best thing ever to happen for car thieves since I don't know when. Especially as you can buy the kit to steal the car online with no questions asked. This story is a few years old now but shows the scale of the problem:
https://www.driving.co.uk/news/news...in-west-london-after-surge-in-keyless-thefts/
Anyhow, getting back on topic, what about £250 extra for yellow brake callipers on a Fiat?
Did you know that metallic paint costs the manufacturers hardly any more than a "solid" colour does? Yet they charge hundreds extra for it? Or that white used to be a NCO, until it became trendy and now it costs £600 extra on some makes?
Aston Martin proudly assure their customers that they can match any colour on the planet for your new car. Simply provide a sample and they'll do the rest - just like the guy on the paint aisle in B&Q does, although they will change you considerably more.
You can also specify
any colour of leather (and stitching) for the interior. I saw one with purple leather / yellow stitching when I was at their place last.
The craftspersonship was amazing, but the colour scheme offended my very soul.
Still, if you really don't want to be ripped off by a motor dealer, don't buy whatever paint protection they're selling. It costs them under £20 a car - they'll charge you ten times that or more.