Update: Some offers mentioned below are no longer available. View the current offers here.Citi is a TPG Advertising Partner.While some customers may not be eager to add weight to their wallets, metal credit cards are all the rage these days. Last summer’s launch of the Chase Sapphire Reserve took this trend mainstream, and now other premium cards like The Platinum Card® from American Express and Citi Prestige are following suit.Well, now it looks like the most premium American Airlines credit card is getting a metallic makeover, too. Recently, Citi began issuing metal cards for the Citi / AAdvantage Executive World Elite Mastercard — new cards will be issued with a metal finish, and existing cardholders can now call in to have a metal replacement card sent over if they wish. The card design (pictured above) hasn’t changed at all, but the new metal finish makes it much more durable.The Citi / AAdvantage Executive World Elite Mastercard’s appeal goes far beyond its look and feel, though. Not only does this card get you access to American Airlines Admirals Clubs — including for authorized users, which are free to add — it’s currently offering an outstanding sign-up bonus of 50,000 bonus miles after you spend $5,000 in the first three months. Just beware of this important Citi restriction, noted in the offer details:American Airlines AAdvantage bonus miles are not available if you have had any Citi / AAdvantage card (other than a CitiBusiness / AAdvantage card) opened or closed in the past 24 months.Especially if you’re eligible for the sky-high bonus, the Citi / AAdvantage Executive World Elite Mastercard is hard to beat. For metal credit card lovers, this updated design is just icing on the cake.Sign up for our daily newsletterEmail addressSign upI would like to subscribe to The Points Guy newsletters and special email promotions. The Points Guy will not share or sell your email. See privacy policy.Does a metal finish make the AAdvantage Executive card more appealing to you?